Quizbank/Electricity and Magnetism (calculus based)/c05

calcPhyEMq/c05 ID153287923206 (|Study guide)

Exams:  A0  A1  A2   B0  B1  B2   C0  C1  C2   D0  D1  D2   E0  E1  E2   F0  F1  F2   G0  G1  G2   H0  H1  H2   I0  I1  I2   J0  J1  J2   K0  K1  K2   L0  L1  L2   M0  M1  M2   N0  N1  N2   O0  O1  O2   P0  P1  P2   Q0  Q1  Q2   R0  R1  R2   S0  S1  S2   T0  T1  T2   U0  U1  U2   V0  V1  V2   W0  W1  W2   X0  X1  X2   Y0  Y1  Y2   Z0  Z1  Z2

Answers:  A0  A1  A2   B0  B1  B2   C0  C1  C2   D0  D1  D2   E0  E1  E2   F0  F1  F2   G0  G1  G2   H0  H1  H2   I0  I1  I2   J0  J1  J2   K0  K1  K2   L0  L1  L2   M0  M1  M2   N0  N1  N2   O0  O1  O2   P0  P1  P2   Q0  Q1  Q2   R0  R1  R2   S0  S1  S2   T0  T1  T2   U0  U1  U2   V0  V1  V2   W0  W1  W2   X0  X1  X2   Y0  Y1  Y2   Z0  Z1  Z2

78 Tests = 3 versions x 26 variations: Each of the 26 variations (A, B, ...) represents a different random selection of questions taken from the |study guide.The 3 versions (0,1,..) all have the same questions but in different order and with different numerical inputs. Unless all students take  version "0" it is best to reserve it for the instructor because the questions are grouped according to the order in which they appear on the study guide.

Links:  Quizbank/Instructions   |Study guide    file:Quizbank153287923206.pdf

Contact me at User talk:Guy vandegrift if you need any help.

c05 A0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * a) 7.517E+00 V/m2
 * b) 8.269E+00 V/m2
 * c) 9.096E+00 V/m2
 * d) 1.001E+01 V/m2
 * e) 1.101E+01 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 2.544E-14 N
 * b) 2.798E-14 N
 * c) 3.078E-14 N
 * d) 3.385E-14 N
 * e) 3.724E-14 N

3) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 4.788E+09 N/C2
 * b) 5.267E+09 N/C2
 * c) 5.793E+09 N/C2
 * d) 6.373E+09 N/C2
 * e) 7.010E+09 N/C2

4) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 4.821E+01 N/C
 * b) 5.303E+01 N/C
 * c) 5.834E+01 N/C
 * d) 6.417E+01 N/C
 * e) 7.059E+01 N/C

c05 A1
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * a) 7.517E+00 V/m2
 * b) 8.269E+00 V/m2
 * c) 9.096E+00 V/m2
 * d) 1.001E+01 V/m2
 * e) 1.101E+01 V/m2

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.2 m (on axis) away from the loop's center?


 * a) 6.925E+09 N/C2
 * b) 7.617E+09 N/C2
 * c) 8.379E+09 N/C2
 * d) 9.217E+09 N/C2
 * e) 1.014E+10 N/C2

3) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 4.492E+01 N/C
 * b) 4.941E+01 N/C
 * c) 5.435E+01 N/C
 * d) 5.979E+01 N/C
 * e) 6.577E+01 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * a) 5.014E-14 N
 * b) 5.515E-14 N
 * c) 6.067E-14 N
 * d) 6.674E-14 N
 * e) 7.341E-14 N

c05 A2
1) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * a) 3.339E+09 N/C2
 * b) 3.673E+09 N/C2
 * c) 4.041E+09 N/C2
 * d) 4.445E+09 N/C2
 * e) 4.889E+09 N/C2

2) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 8.471E+01 N/C
 * b) 9.318E+01 N/C
 * c) 1.025E+02 N/C
 * d) 1.127E+02 N/C
 * e) 1.240E+02 N/C

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.2\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.2\text{ m}$$.


 * a) 3.228E+00 V/m2
 * b) 3.551E+00 V/m2
 * c) 3.906E+00 V/m2
 * d) 4.297E+00 V/m2
 * e) 4.727E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 2.036E-14 N
 * b) 2.240E-14 N
 * c) 2.464E-14 N
 * d) 2.710E-14 N
 * e) 2.981E-14 N

c05 B0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * a) 7.517E+00 V/m2
 * b) 8.269E+00 V/m2
 * c) 9.096E+00 V/m2
 * d) 1.001E+01 V/m2
 * e) 1.101E+01 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 2.036E-14 N
 * b) 2.240E-14 N
 * c) 2.464E-14 N
 * d) 2.710E-14 N
 * e) 2.981E-14 N

3) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 2.571E+01 N/C
 * b) 2.828E+01 N/C
 * c) 3.111E+01 N/C
 * d) 3.422E+01 N/C
 * e) 3.765E+01 N/C

4) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

c05 B1
1) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 8 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 6.171E+01 N/C
 * b) 6.788E+01 N/C
 * c) 7.467E+01 N/C
 * d) 8.214E+01 N/C
 * e) 9.035E+01 N/C

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * a) 1.308E-13 N
 * b) 1.439E-13 N
 * c) 1.583E-13 N
 * d) 1.741E-13 N
 * e) 1.915E-13 N

3) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 3.159E+09 N/C2
 * b) 3.475E+09 N/C2
 * c) 3.823E+09 N/C2
 * d) 4.205E+09 N/C2
 * e) 4.626E+09 N/C2

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=8.1\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=4.2\text{ m}$$.


 * a) 5.134E-01 V/m2
 * b) 5.648E-01 V/m2
 * c) 6.212E-01 V/m2
 * d) 6.834E-01 V/m2
 * e) 7.517E-01 V/m2

c05 B2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 2.248E-14 N
 * b) 2.473E-14 N
 * c) 2.721E-14 N
 * d) 2.993E-14 N
 * e) 3.292E-14 N

2) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * a) 3.339E+09 N/C2
 * b) 3.673E+09 N/C2
 * c) 4.041E+09 N/C2
 * d) 4.445E+09 N/C2
 * e) 4.889E+09 N/C2

3) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 4.492E+01 N/C
 * b) 4.941E+01 N/C
 * c) 5.435E+01 N/C
 * d) 5.979E+01 N/C
 * e) 6.577E+01 N/C

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.9\text{ m}$$.


 * a) 4.295E+00 V/m2
 * b) 4.724E+00 V/m2
 * c) 5.196E+00 V/m2
 * d) 5.716E+00 V/m2
 * e) 6.288E+00 V/m2

c05 C0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.0\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.2\text{ m}$$.


 * a) 8.933E+00 V/m2
 * b) 9.826E+00 V/m2
 * c) 1.081E+01 V/m2
 * d) 1.189E+01 V/m2
 * e) 1.308E+01 V/m2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.0 m, b=1.8 m.  The total charge on the rod is 6 nC.


 * a) 3.610E+00 V/m2
 * b) 3.971E+00 V/m2
 * c) 4.368E+00 V/m2
 * d) 4.804E+00 V/m2
 * e) 5.285E+00 V/m2

3) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 1.202E+09 N/C2
 * b) 1.322E+09 N/C2
 * c) 1.454E+09 N/C2
 * d) 1.599E+09 N/C2
 * e) 1.759E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.377E+01 degrees
 * b) 5.914E+01 degrees
 * c) 6.506E+01 degrees
 * d) 7.157E+01 degrees
 * e) 7.872E+01 degrees

c05 C1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.65 m if a=0.85 m, b=1.8 m.  The total charge on the rod is 5 nC.


 * a) 3.959E+00 V/m2
 * b) 4.355E+00 V/m2
 * c) 4.790E+00 V/m2
 * d) 5.269E+00 V/m2
 * e) 5.796E+00 V/m2

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.0\text{ m}$$ and the surface charge density is $$\sigma=8\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * a) 9.459E+00 V/m2
 * b) 1.040E+01 V/m2
 * c) 1.145E+01 V/m2
 * d) 1.259E+01 V/m2
 * e) 1.385E+01 V/m2

3) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.377E+01 degrees
 * b) 5.914E+01 degrees
 * c) 6.506E+01 degrees
 * d) 7.157E+01 degrees
 * e) 7.872E+01 degrees

c05 C2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 5.569E+01 degrees
 * b) 6.125E+01 degrees
 * c) 6.738E+01 degrees
 * d) 7.412E+01 degrees
 * e) 8.153E+01 degrees

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * a) 7.517E+00 V/m2
 * b) 8.269E+00 V/m2
 * c) 9.096E+00 V/m2
 * d) 1.001E+01 V/m2
 * e) 1.101E+01 V/m2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.62 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * a) 6.311E+00 V/m2
 * b) 6.943E+00 V/m2
 * c) 7.637E+00 V/m2
 * d) 8.401E+00 V/m2
 * e) 9.241E+00 V/m2

4) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * a) 3.339E+09 N/C2
 * b) 3.673E+09 N/C2
 * c) 4.041E+09 N/C2
 * d) 4.445E+09 N/C2
 * e) 4.889E+09 N/C2

c05 D0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.8\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * a) 1.258E+00 V/m2
 * b) 1.384E+00 V/m2
 * c) 1.522E+00 V/m2
 * d) 1.674E+00 V/m2
 * e) 1.842E+00 V/m2

2) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 2.357E+01 N/C
 * b) 2.593E+01 N/C
 * c) 2.852E+01 N/C
 * d) 3.137E+01 N/C
 * e) 3.451E+01 N/C

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=2e$$?


 * a) 3.876E-14 N
 * b) 4.263E-14 N
 * c) 4.690E-14 N
 * d) 5.159E-14 N
 * e) 5.675E-14 N

4) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

c05 D1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 1.473E-14 N
 * b) 1.620E-14 N
 * c) 1.782E-14 N
 * d) 1.960E-14 N
 * e) 2.156E-14 N

2) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.99 m (on axis) away from the loop's center?


 * a) 2.429E+09 N/C2
 * b) 2.672E+09 N/C2
 * c) 2.939E+09 N/C2
 * d) 3.233E+09 N/C2
 * e) 3.556E+09 N/C2

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * a) 7.820E-01 V/m2
 * b) 8.602E-01 V/m2
 * c) 9.462E-01 V/m2
 * d) 1.041E+00 V/m2
 * e) 1.145E+00 V/m2

4) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 4.821E+01 N/C
 * b) 5.303E+01 N/C
 * c) 5.834E+01 N/C
 * d) 6.417E+01 N/C
 * e) 7.059E+01 N/C

c05 D2
1) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 5.647E+01 N/C
 * b) 6.212E+01 N/C
 * c) 6.833E+01 N/C
 * d) 7.516E+01 N/C
 * e) 8.268E+01 N/C

2) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 3.159E+09 N/C2
 * b) 3.475E+09 N/C2
 * c) 3.823E+09 N/C2
 * d) 4.205E+09 N/C2
 * e) 4.626E+09 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=2e$$?


 * a) 3.391E-14 N
 * b) 3.731E-14 N
 * c) 4.104E-14 N
 * d) 4.514E-14 N
 * e) 4.965E-14 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * a) 7.517E+00 V/m2
 * b) 8.269E+00 V/m2
 * c) 9.096E+00 V/m2
 * d) 1.001E+01 V/m2
 * e) 1.101E+01 V/m2

c05 E0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=2e$$?


 * a) 3.426E-15 N
 * b) 3.768E-15 N
 * c) 4.145E-15 N
 * d) 4.560E-15 N
 * e) 5.015E-15 N

2) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 6.534E+01 N/C
 * b) 7.187E+01 N/C
 * c) 7.906E+01 N/C
 * d) 8.696E+01 N/C
 * e) 9.566E+01 N/C

3) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.73 m (on axis) away from the loop's center?


 * a) 7.415E+09 N/C2
 * b) 8.156E+09 N/C2
 * c) 8.972E+09 N/C2
 * d) 9.869E+09 N/C2
 * e) 1.086E+10 N/C2

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.4 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.69 m, b=2.2 m.  The total charge on the rod is 6 nC.


 * a) 3.161E+00 V/m2
 * b) 3.477E+00 V/m2
 * c) 3.825E+00 V/m2
 * d) 4.208E+00 V/m2
 * e) 4.628E+00 V/m2

c05 E1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.2 m.  Evaluate $$f(x,y)$$ at x=0.54 m if a=0.76 m, b=1.7 m.  The total charge on the rod is 8 nC.


 * a) 1.399E+01 V/m2
 * b) 1.539E+01 V/m2
 * c) 1.693E+01 V/m2
 * d) 1.862E+01 V/m2
 * e) 2.049E+01 V/m2

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.35 m (on axis) away from the loop's center?


 * a) 4.142E+09 N/C2
 * b) 4.556E+09 N/C2
 * c) 5.012E+09 N/C2
 * d) 5.513E+09 N/C2
 * e) 6.064E+09 N/C2

3) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 6.534E+01 N/C
 * b) 7.187E+01 N/C
 * c) 7.906E+01 N/C
 * d) 8.696E+01 N/C
 * e) 9.566E+01 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 2.544E-14 N
 * b) 2.798E-14 N
 * c) 3.078E-14 N
 * d) 3.385E-14 N
 * e) 3.724E-14 N

c05 E2
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.0 m, b=1.8 m.  The total charge on the rod is 6 nC.


 * a) 3.610E+00 V/m2
 * b) 3.971E+00 V/m2
 * c) 4.368E+00 V/m2
 * d) 4.804E+00 V/m2
 * e) 5.285E+00 V/m2

2) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 6.534E+01 N/C
 * b) 7.187E+01 N/C
 * c) 7.906E+01 N/C
 * d) 8.696E+01 N/C
 * e) 9.566E+01 N/C

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 2.544E-14 N
 * b) 2.798E-14 N
 * c) 3.078E-14 N
 * d) 3.385E-14 N
 * e) 3.724E-14 N

4) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

c05 F0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 2.544E-14 N
 * b) 2.798E-14 N
 * c) 3.078E-14 N
 * d) 3.385E-14 N
 * e) 3.724E-14 N

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 3.672E+09 N/C2
 * b) 4.039E+09 N/C2
 * c) 4.443E+09 N/C2
 * d) 4.887E+09 N/C2
 * e) 5.376E+09 N/C2

3) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 9.412E+01 N/C
 * b) 1.035E+02 N/C
 * c) 1.139E+02 N/C
 * d) 1.253E+02 N/C
 * e) 1.378E+02 N/C

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * a) 8.253E-01 V/m2
 * b) 9.079E-01 V/m2
 * c) 9.987E-01 V/m2
 * d) 1.099E+00 V/m2
 * e) 1.208E+00 V/m2

c05 F1
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.0\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.2\text{ m}$$.


 * a) 8.933E+00 V/m2
 * b) 9.826E+00 V/m2
 * c) 1.081E+01 V/m2
 * d) 1.189E+01 V/m2
 * e) 1.308E+01 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=2e$$?


 * a) 5.732E-15 N
 * b) 6.305E-15 N
 * c) 6.936E-15 N
 * d) 7.629E-15 N
 * e) 8.392E-15 N

3) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 3.214E+01 N/C
 * b) 3.536E+01 N/C
 * c) 3.889E+01 N/C
 * d) 4.278E+01 N/C
 * e) 4.706E+01 N/C

4) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 3.159E+09 N/C2
 * b) 3.475E+09 N/C2
 * c) 3.823E+09 N/C2
 * d) 4.205E+09 N/C2
 * e) 4.626E+09 N/C2

c05 F2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 8.259E-15 N
 * b) 9.085E-15 N
 * c) 9.993E-15 N
 * d) 1.099E-14 N
 * e) 1.209E-14 N

2) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 3.159E+09 N/C2
 * b) 3.475E+09 N/C2
 * c) 3.823E+09 N/C2
 * d) 4.205E+09 N/C2
 * e) 4.626E+09 N/C2

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.83\text{ m}$$.


 * a) 2.898E+01 V/m2
 * b) 3.188E+01 V/m2
 * c) 3.507E+01 V/m2
 * d) 3.857E+01 V/m2
 * e) 4.243E+01 V/m2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 3.214E+01 N/C
 * b) 3.536E+01 N/C
 * c) 3.889E+01 N/C
 * d) 4.278E+01 N/C
 * e) 4.706E+01 N/C

c05 G0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * a) 7.517E+00 V/m2
 * b) 8.269E+00 V/m2
 * c) 9.096E+00 V/m2
 * d) 1.001E+01 V/m2
 * e) 1.101E+01 V/m2

2) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 1.202E+09 N/C2
 * b) 1.322E+09 N/C2
 * c) 1.454E+09 N/C2
 * d) 1.599E+09 N/C2
 * e) 1.759E+09 N/C2

3) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 7.701E+01 N/C
 * b) 8.471E+01 N/C
 * c) 9.318E+01 N/C
 * d) 1.025E+02 N/C
 * e) 1.127E+02 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.377E+01 degrees
 * b) 5.914E+01 degrees
 * c) 6.506E+01 degrees
 * d) 7.157E+01 degrees
 * e) 7.872E+01 degrees

c05 G1
1) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 8 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 6.171E+01 N/C
 * b) 6.788E+01 N/C
 * c) 7.467E+01 N/C
 * d) 8.214E+01 N/C
 * e) 9.035E+01 N/C

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.377E+01 degrees
 * b) 5.914E+01 degrees
 * c) 6.506E+01 degrees
 * d) 7.157E+01 degrees
 * e) 7.872E+01 degrees

3) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.5 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.33 m (on axis) away from the loop's center?


 * a) 1.353E+09 N/C2
 * b) 1.488E+09 N/C2
 * c) 1.637E+09 N/C2
 * d) 1.801E+09 N/C2
 * e) 1.981E+09 N/C2

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=4.3\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.4\text{ m}$$.


 * a) 5.647E+00 V/m2
 * b) 6.212E+00 V/m2
 * c) 6.833E+00 V/m2
 * d) 7.517E+00 V/m2
 * e) 8.268E+00 V/m2

c05 G2
1) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 3.672E+09 N/C2
 * b) 4.039E+09 N/C2
 * c) 4.443E+09 N/C2
 * d) 4.887E+09 N/C2
 * e) 5.376E+09 N/C2

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=9.1\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=6.2\text{ m}$$.


 * a) 4.961E-01 V/m2
 * b) 5.457E-01 V/m2
 * c) 6.002E-01 V/m2
 * d) 6.603E-01 V/m2
 * e) 7.263E-01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 5.272E+01 degrees
 * b) 5.799E+01 degrees
 * c) 6.379E+01 degrees
 * d) 7.017E+01 degrees
 * e) 7.719E+01 degrees

4) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 4.821E+01 N/C
 * b) 5.303E+01 N/C
 * c) 5.834E+01 N/C
 * d) 6.417E+01 N/C
 * e) 7.059E+01 N/C

c05 H0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 6.343E+01 degrees
 * b) 6.978E+01 degrees
 * c) 7.676E+01 degrees
 * d) 8.443E+01 degrees
 * e) 9.288E+01 degrees

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * a) 7.820E-01 V/m2
 * b) 8.602E-01 V/m2
 * c) 9.462E-01 V/m2
 * d) 1.041E+00 V/m2
 * e) 1.145E+00 V/m2

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 4.821E+01 N/C
 * b) 5.303E+01 N/C
 * c) 5.834E+01 N/C
 * d) 6.417E+01 N/C
 * e) 7.059E+01 N/C

4) A ring is uniformly charged with a net charge of 6 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.4 m (on axis) away from the loop's center?


 * a) 2.013E+09 N/C2
 * b) 2.214E+09 N/C2
 * c) 2.435E+09 N/C2
 * d) 2.679E+09 N/C2
 * e) 2.947E+09 N/C2

c05 H1
1) A ring is uniformly charged with a net charge of 6 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.4 m (on axis) away from the loop's center?


 * a) 2.013E+09 N/C2
 * b) 2.214E+09 N/C2
 * c) 2.435E+09 N/C2
 * d) 2.679E+09 N/C2
 * e) 2.947E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 5.272E+01 degrees
 * b) 5.799E+01 degrees
 * c) 6.379E+01 degrees
 * d) 7.017E+01 degrees
 * e) 7.719E+01 degrees

3) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 8 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 6.171E+01 N/C
 * b) 6.788E+01 N/C
 * c) 7.467E+01 N/C
 * d) 8.214E+01 N/C
 * e) 9.035E+01 N/C

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * a) 8.253E-01 V/m2
 * b) 9.079E-01 V/m2
 * c) 9.987E-01 V/m2
 * d) 1.099E+00 V/m2
 * e) 1.208E+00 V/m2

c05 H2
1) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 4.788E+09 N/C2
 * b) 5.267E+09 N/C2
 * c) 5.793E+09 N/C2
 * d) 6.373E+09 N/C2
 * e) 7.010E+09 N/C2

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.8\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * a) 1.258E+00 V/m2
 * b) 1.384E+00 V/m2
 * c) 1.522E+00 V/m2
 * d) 1.674E+00 V/m2
 * e) 1.842E+00 V/m2

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 4.821E+01 N/C
 * b) 5.303E+01 N/C
 * c) 5.834E+01 N/C
 * d) 6.417E+01 N/C
 * e) 7.059E+01 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * a) 3.719E+01 degrees
 * b) 4.091E+01 degrees
 * c) 4.500E+01 degrees
 * d) 4.950E+01 degrees
 * e) 5.445E+01 degrees

c05 I0
1) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 4.788E+09 N/C2
 * b) 5.267E+09 N/C2
 * c) 5.793E+09 N/C2
 * d) 6.373E+09 N/C2
 * e) 7.010E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 5.569E+01 degrees
 * b) 6.125E+01 degrees
 * c) 6.738E+01 degrees
 * d) 7.412E+01 degrees
 * e) 8.153E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.8\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * a) 1.258E+00 V/m2
 * b) 1.384E+00 V/m2
 * c) 1.522E+00 V/m2
 * d) 1.674E+00 V/m2
 * e) 1.842E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 8.259E-15 N
 * b) 9.085E-15 N
 * c) 9.993E-15 N
 * d) 1.099E-14 N
 * e) 1.209E-14 N

c05 I1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 3.961E+01 degrees
 * b) 4.357E+01 degrees
 * c) 4.793E+01 degrees
 * d) 5.272E+01 degrees
 * e) 5.799E+01 degrees

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 2.248E-14 N
 * b) 2.473E-14 N
 * c) 2.721E-14 N
 * d) 2.993E-14 N
 * e) 3.292E-14 N

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.9\text{ m}$$.


 * a) 4.295E+00 V/m2
 * b) 4.724E+00 V/m2
 * c) 5.196E+00 V/m2
 * d) 5.716E+00 V/m2
 * e) 6.288E+00 V/m2

4) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 1.202E+09 N/C2
 * b) 1.322E+09 N/C2
 * c) 1.454E+09 N/C2
 * d) 1.599E+09 N/C2
 * e) 1.759E+09 N/C2

c05 I2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 6.125E+01 degrees
 * b) 6.738E+01 degrees
 * c) 7.412E+01 degrees
 * d) 8.153E+01 degrees
 * e) 8.968E+01 degrees

2) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * a) 1.308E-13 N
 * b) 1.439E-13 N
 * c) 1.583E-13 N
 * d) 1.741E-13 N
 * e) 1.915E-13 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * a) 7.820E-01 V/m2
 * b) 8.602E-01 V/m2
 * c) 9.462E-01 V/m2
 * d) 1.041E+00 V/m2
 * e) 1.145E+00 V/m2

c05 J0
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.5 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.33 m (on axis) away from the loop's center?


 * a) 1.353E+09 N/C2
 * b) 1.488E+09 N/C2
 * c) 1.637E+09 N/C2
 * d) 1.801E+09 N/C2
 * e) 1.981E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 5.569E+01 degrees
 * b) 6.125E+01 degrees
 * c) 6.738E+01 degrees
 * d) 7.412E+01 degrees
 * e) 8.153E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.2\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * a) 1.606E+00 V/m2
 * b) 1.767E+00 V/m2
 * c) 1.943E+00 V/m2
 * d) 2.138E+00 V/m2
 * e) 2.351E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=2e$$?


 * a) 3.876E-14 N
 * b) 4.263E-14 N
 * c) 4.690E-14 N
 * d) 5.159E-14 N
 * e) 5.675E-14 N

c05 J1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=6e$$?


 * a) 5.243E+01 degrees
 * b) 5.767E+01 degrees
 * c) 6.343E+01 degrees
 * d) 6.978E+01 degrees
 * e) 7.676E+01 degrees

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 8.336E+09 N/C2
 * b) 9.170E+09 N/C2
 * c) 1.009E+10 N/C2
 * d) 1.110E+10 N/C2
 * e) 1.220E+10 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 5.243E-14 N
 * b) 5.768E-14 N
 * c) 6.344E-14 N
 * d) 6.979E-14 N
 * e) 7.677E-14 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.2\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.2\text{ m}$$.


 * a) 3.228E+00 V/m2
 * b) 3.551E+00 V/m2
 * c) 3.906E+00 V/m2
 * d) 4.297E+00 V/m2
 * e) 4.727E+00 V/m2

c05 J2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 3.961E+01 degrees
 * b) 4.357E+01 degrees
 * c) 4.793E+01 degrees
 * d) 5.272E+01 degrees
 * e) 5.799E+01 degrees

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.8\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * a) 1.258E+00 V/m2
 * b) 1.384E+00 V/m2
 * c) 1.522E+00 V/m2
 * d) 1.674E+00 V/m2
 * e) 1.842E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 4.171E-14 N
 * b) 4.588E-14 N
 * c) 5.047E-14 N
 * d) 5.551E-14 N
 * e) 6.107E-14 N

4) A ring is uniformly charged with a net charge of 6 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.4 m (on axis) away from the loop's center?


 * a) 2.013E+09 N/C2
 * b) 2.214E+09 N/C2
 * c) 2.435E+09 N/C2
 * d) 2.679E+09 N/C2
 * e) 2.947E+09 N/C2

c05 K0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 5.569E+01 degrees
 * b) 6.125E+01 degrees
 * c) 6.738E+01 degrees
 * d) 7.412E+01 degrees
 * e) 8.153E+01 degrees

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 4.171E-14 N
 * b) 4.588E-14 N
 * c) 5.047E-14 N
 * d) 5.551E-14 N
 * e) 6.107E-14 N

3) A ring is uniformly charged with a net charge of 6 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.4 m (on axis) away from the loop's center?


 * a) 2.013E+09 N/C2
 * b) 2.214E+09 N/C2
 * c) 2.435E+09 N/C2
 * d) 2.679E+09 N/C2
 * e) 2.947E+09 N/C2

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * a) 7.820E-01 V/m2
 * b) 8.602E-01 V/m2
 * c) 9.462E-01 V/m2
 * d) 1.041E+00 V/m2
 * e) 1.145E+00 V/m2

c05 K1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 8.259E-15 N
 * b) 9.085E-15 N
 * c) 9.993E-15 N
 * d) 1.099E-14 N
 * e) 1.209E-14 N

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * a) 8.253E-01 V/m2
 * b) 9.079E-01 V/m2
 * c) 9.987E-01 V/m2
 * d) 1.099E+00 V/m2
 * e) 1.208E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 6.125E+01 degrees
 * b) 6.738E+01 degrees
 * c) 7.412E+01 degrees
 * d) 8.153E+01 degrees
 * e) 8.968E+01 degrees

4) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.4 m (on axis) away from the loop's center?


 * a) 7.119E+09 N/C2
 * b) 7.831E+09 N/C2
 * c) 8.614E+09 N/C2
 * d) 9.476E+09 N/C2
 * e) 1.042E+10 N/C2

c05 K2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 3.629E+01 degrees
 * b) 3.992E+01 degrees
 * c) 4.391E+01 degrees
 * d) 4.830E+01 degrees
 * e) 5.313E+01 degrees

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.2 m (on axis) away from the loop's center?


 * a) 6.925E+09 N/C2
 * b) 7.617E+09 N/C2
 * c) 8.379E+09 N/C2
 * d) 9.217E+09 N/C2
 * e) 1.014E+10 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * a) 5.014E-14 N
 * b) 5.515E-14 N
 * c) 6.067E-14 N
 * d) 6.674E-14 N
 * e) 7.341E-14 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=8.3\text{ m}$$ and the surface charge density is $$\sigma=5\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.3\text{ m}$$.


 * a) 1.022E+00 V/m2
 * b) 1.125E+00 V/m2
 * c) 1.237E+00 V/m2
 * d) 1.361E+00 V/m2
 * e) 1.497E+00 V/m2

c05 L0
1) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 3.672E+09 N/C2
 * b) 4.039E+09 N/C2
 * c) 4.443E+09 N/C2
 * d) 4.887E+09 N/C2
 * e) 5.376E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * a) 5.767E+01 degrees
 * b) 6.343E+01 degrees
 * c) 6.978E+01 degrees
 * d) 7.676E+01 degrees
 * e) 8.443E+01 degrees

3) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 8.471E+01 N/C
 * b) 9.318E+01 N/C
 * c) 1.025E+02 N/C
 * d) 1.127E+02 N/C
 * e) 1.240E+02 N/C

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.0\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.2\text{ m}$$.


 * a) 8.933E+00 V/m2
 * b) 9.826E+00 V/m2
 * c) 1.081E+01 V/m2
 * d) 1.189E+01 V/m2
 * e) 1.308E+01 V/m2

c05 L1
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 9.412E+01 N/C
 * b) 1.035E+02 N/C
 * c) 1.139E+02 N/C
 * d) 1.253E+02 N/C
 * e) 1.378E+02 N/C

2) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * a) 5.352E+09 N/C2
 * b) 5.887E+09 N/C2
 * c) 6.476E+09 N/C2
 * d) 7.124E+09 N/C2
 * e) 7.836E+09 N/C2

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * a) 8.253E-01 V/m2
 * b) 9.079E-01 V/m2
 * c) 9.987E-01 V/m2
 * d) 1.099E+00 V/m2
 * e) 1.208E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 5.272E+01 degrees
 * b) 5.799E+01 degrees
 * c) 6.379E+01 degrees
 * d) 7.017E+01 degrees
 * e) 7.719E+01 degrees

c05 L2
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

2) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 9.412E+01 N/C
 * b) 1.035E+02 N/C
 * c) 1.139E+02 N/C
 * d) 1.253E+02 N/C
 * e) 1.378E+02 N/C

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=9.1\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=6.2\text{ m}$$.


 * a) 4.961E-01 V/m2
 * b) 5.457E-01 V/m2
 * c) 6.002E-01 V/m2
 * d) 6.603E-01 V/m2
 * e) 7.263E-01 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 4.743E+01 degrees
 * b) 5.217E+01 degrees
 * c) 5.739E+01 degrees
 * d) 6.313E+01 degrees
 * e) 6.944E+01 degrees

c05 M0
1) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 1.202E+09 N/C2
 * b) 1.322E+09 N/C2
 * c) 1.454E+09 N/C2
 * d) 1.599E+09 N/C2
 * e) 1.759E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 5.272E+01 degrees
 * b) 5.799E+01 degrees
 * c) 6.379E+01 degrees
 * d) 7.017E+01 degrees
 * e) 7.719E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=9.1\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=6.2\text{ m}$$.


 * a) 4.961E-01 V/m2
 * b) 5.457E-01 V/m2
 * c) 6.002E-01 V/m2
 * d) 6.603E-01 V/m2
 * e) 7.263E-01 V/m2

4) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 6.534E+01 N/C
 * b) 7.187E+01 N/C
 * c) 7.906E+01 N/C
 * d) 8.696E+01 N/C
 * e) 9.566E+01 N/C

c05 M1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 3.629E+01 degrees
 * b) 3.992E+01 degrees
 * c) 4.391E+01 degrees
 * d) 4.830E+01 degrees
 * e) 5.313E+01 degrees

2) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 9.546E+01 N/C
 * b) 1.050E+02 N/C
 * c) 1.155E+02 N/C
 * d) 1.271E+02 N/C
 * e) 1.398E+02 N/C

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * a) 8.253E-01 V/m2
 * b) 9.079E-01 V/m2
 * c) 9.987E-01 V/m2
 * d) 1.099E+00 V/m2
 * e) 1.208E+00 V/m2

4) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 1.202E+09 N/C2
 * b) 1.322E+09 N/C2
 * c) 1.454E+09 N/C2
 * d) 1.599E+09 N/C2
 * e) 1.759E+09 N/C2

c05 M2
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.9\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=4.3\text{ m}$$.


 * a) 8.924E-01 V/m2
 * b) 9.816E-01 V/m2
 * c) 1.080E+00 V/m2
 * d) 1.188E+00 V/m2
 * e) 1.307E+00 V/m2

2) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 3.214E+01 N/C
 * b) 3.536E+01 N/C
 * c) 3.889E+01 N/C
 * d) 4.278E+01 N/C
 * e) 4.706E+01 N/C

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * a) 3.719E+01 degrees
 * b) 4.091E+01 degrees
 * c) 4.500E+01 degrees
 * d) 4.950E+01 degrees
 * e) 5.445E+01 degrees

4) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 4.788E+09 N/C2
 * b) 5.267E+09 N/C2
 * c) 5.793E+09 N/C2
 * d) 6.373E+09 N/C2
 * e) 7.010E+09 N/C2

c05 N0
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 1.694E+02 N/C
 * b) 1.864E+02 N/C
 * c) 2.050E+02 N/C
 * d) 2.255E+02 N/C
 * e) 2.480E+02 N/C

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 5.569E+01 degrees
 * b) 6.125E+01 degrees
 * c) 6.738E+01 degrees
 * d) 7.412E+01 degrees
 * e) 8.153E+01 degrees

3) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.35 m (on axis) away from the loop's center?


 * a) 4.142E+09 N/C2
 * b) 4.556E+09 N/C2
 * c) 5.012E+09 N/C2
 * d) 5.513E+09 N/C2
 * e) 6.064E+09 N/C2

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.96 m if a=0.95 m, b=1.8 m.  The total charge on the rod is 7 nC.


 * a) 3.385E+00 V/m2
 * b) 3.724E+00 V/m2
 * c) 4.096E+00 V/m2
 * d) 4.506E+00 V/m2
 * e) 4.957E+00 V/m2

c05 N1
1) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 6.534E+01 N/C
 * b) 7.187E+01 N/C
 * c) 7.906E+01 N/C
 * d) 8.696E+01 N/C
 * e) 9.566E+01 N/C

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.3 m.  Evaluate $$f(x,y)$$ at x=0.96 m if a=0.63 m, b=1.4 m.  The total charge on the rod is 3 nC.


 * a) 3.719E+00 V/m2
 * b) 4.091E+00 V/m2
 * c) 4.500E+00 V/m2
 * d) 4.950E+00 V/m2
 * e) 5.445E+00 V/m2

3) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * a) 5.352E+09 N/C2
 * b) 5.887E+09 N/C2
 * c) 6.476E+09 N/C2
 * d) 7.124E+09 N/C2
 * e) 7.836E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.377E+01 degrees
 * b) 5.914E+01 degrees
 * c) 6.506E+01 degrees
 * d) 7.157E+01 degrees
 * e) 7.872E+01 degrees

c05 N2
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 9.412E+01 N/C
 * b) 1.035E+02 N/C
 * c) 1.139E+02 N/C
 * d) 1.253E+02 N/C
 * e) 1.378E+02 N/C

2) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.4 m (on axis) away from the loop's center?


 * a) 7.119E+09 N/C2
 * b) 7.831E+09 N/C2
 * c) 8.614E+09 N/C2
 * d) 9.476E+09 N/C2
 * e) 1.042E+10 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.914E+01 degrees
 * b) 6.506E+01 degrees
 * c) 7.157E+01 degrees
 * d) 7.872E+01 degrees
 * e) 8.659E+01 degrees

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.54 m if a=1.0 m, b=2.0 m.  The total charge on the rod is 3 nC.


 * a) 1.665E+00 V/m2
 * b) 1.831E+00 V/m2
 * c) 2.014E+00 V/m2
 * d) 2.216E+00 V/m2
 * e) 2.437E+00 V/m2

c05 O0
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.65 m if a=0.85 m, b=1.8 m.  The total charge on the rod is 5 nC.


 * a) 3.959E+00 V/m2
 * b) 4.355E+00 V/m2
 * c) 4.790E+00 V/m2
 * d) 5.269E+00 V/m2
 * e) 5.796E+00 V/m2

2) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 3.500E+01 N/C
 * b) 3.850E+01 N/C
 * c) 4.235E+01 N/C
 * d) 4.659E+01 N/C
 * e) 5.125E+01 N/C

3) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 3.672E+09 N/C2
 * b) 4.039E+09 N/C2
 * c) 4.443E+09 N/C2
 * d) 4.887E+09 N/C2
 * e) 5.376E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * a) 4.766E+01 degrees
 * b) 5.243E+01 degrees
 * c) 5.767E+01 degrees
 * d) 6.343E+01 degrees
 * e) 6.978E+01 degrees

c05 O1
1) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 7.701E+01 N/C
 * b) 8.471E+01 N/C
 * c) 9.318E+01 N/C
 * d) 1.025E+02 N/C
 * e) 1.127E+02 N/C

2) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.7 m, b=1.8 m.  The total charge on the rod is 9 nC.


 * a) 6.897E+00 V/m2
 * b) 7.587E+00 V/m2
 * c) 8.345E+00 V/m2
 * d) 9.180E+00 V/m2
 * e) 1.010E+01 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 3.629E+01 degrees
 * b) 3.992E+01 degrees
 * c) 4.391E+01 degrees
 * d) 4.830E+01 degrees
 * e) 5.313E+01 degrees

c05 O2
1) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 4.492E+01 N/C
 * b) 4.941E+01 N/C
 * c) 5.435E+01 N/C
 * d) 5.979E+01 N/C
 * e) 6.577E+01 N/C

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * a) 3.672E+09 N/C2
 * b) 4.039E+09 N/C2
 * c) 4.443E+09 N/C2
 * d) 4.887E+09 N/C2
 * e) 5.376E+09 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * a) 4.766E+01 degrees
 * b) 5.243E+01 degrees
 * c) 5.767E+01 degrees
 * d) 6.343E+01 degrees
 * e) 6.978E+01 degrees

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.1 m, b=1.4 m.  The total charge on the rod is 5 nC.


 * a) 4.602E+00 V/m2
 * b) 5.062E+00 V/m2
 * c) 5.568E+00 V/m2
 * d) 6.125E+00 V/m2
 * e) 6.738E+00 V/m2

c05 P0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * a) 7.820E-01 V/m2
 * b) 8.602E-01 V/m2
 * c) 9.462E-01 V/m2
 * d) 1.041E+00 V/m2
 * e) 1.145E+00 V/m2

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.35 m (on axis) away from the loop's center?


 * a) 4.142E+09 N/C2
 * b) 4.556E+09 N/C2
 * c) 5.012E+09 N/C2
 * d) 5.513E+09 N/C2
 * e) 6.064E+09 N/C2

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 4.821E+01 N/C
 * b) 5.303E+01 N/C
 * c) 5.834E+01 N/C
 * d) 6.417E+01 N/C
 * e) 7.059E+01 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 6.343E+01 degrees
 * b) 6.978E+01 degrees
 * c) 7.676E+01 degrees
 * d) 8.443E+01 degrees
 * e) 9.288E+01 degrees

c05 P1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * a) 5.767E+01 degrees
 * b) 6.343E+01 degrees
 * c) 6.978E+01 degrees
 * d) 7.676E+01 degrees
 * e) 8.443E+01 degrees

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 8.336E+09 N/C2
 * b) 9.170E+09 N/C2
 * c) 1.009E+10 N/C2
 * d) 1.110E+10 N/C2
 * e) 1.220E+10 N/C2

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.83\text{ m}$$.


 * a) 2.898E+01 V/m2
 * b) 3.188E+01 V/m2
 * c) 3.507E+01 V/m2
 * d) 3.857E+01 V/m2
 * e) 4.243E+01 V/m2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 3.214E+01 N/C
 * b) 3.536E+01 N/C
 * c) 3.889E+01 N/C
 * d) 4.278E+01 N/C
 * e) 4.706E+01 N/C

c05 P2
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.9\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=4.3\text{ m}$$.


 * a) 8.924E-01 V/m2
 * b) 9.816E-01 V/m2
 * c) 1.080E+00 V/m2
 * d) 1.188E+00 V/m2
 * e) 1.307E+00 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=6e$$?


 * a) 5.243E+01 degrees
 * b) 5.767E+01 degrees
 * c) 6.343E+01 degrees
 * d) 6.978E+01 degrees
 * e) 7.676E+01 degrees

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 9.546E+01 N/C
 * b) 1.050E+02 N/C
 * c) 1.155E+02 N/C
 * d) 1.271E+02 N/C
 * e) 1.398E+02 N/C

4) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * a) 5.352E+09 N/C2
 * b) 5.887E+09 N/C2
 * c) 6.476E+09 N/C2
 * d) 7.124E+09 N/C2
 * e) 7.836E+09 N/C2

c05 Q0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * a) 5.014E-14 N
 * b) 5.515E-14 N
 * c) 6.067E-14 N
 * d) 6.674E-14 N
 * e) 7.341E-14 N

2) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 2.571E+01 N/C
 * b) 2.828E+01 N/C
 * c) 3.111E+01 N/C
 * d) 3.422E+01 N/C
 * e) 3.765E+01 N/C

3) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 5.402E+09 N/C2
 * b) 5.943E+09 N/C2
 * c) 6.537E+09 N/C2
 * d) 7.191E+09 N/C2
 * e) 7.910E+09 N/C2

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.61 m, b=1.7 m.  The total charge on the rod is 8 nC.


 * a) 5.995E+00 V/m2
 * b) 6.595E+00 V/m2
 * c) 7.254E+00 V/m2
 * d) 7.980E+00 V/m2
 * e) 8.778E+00 V/m2

c05 Q1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.7 m.  Evaluate $$f(x,y)$$ at x=0.76 m if a=1.1 m, b=1.6 m.  The total charge on the rod is 8 nC.


 * a) 5.267E+00 V/m2
 * b) 5.794E+00 V/m2
 * c) 6.374E+00 V/m2
 * d) 7.011E+00 V/m2
 * e) 7.712E+00 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=2e$$?


 * a) 3.426E-15 N
 * b) 3.768E-15 N
 * c) 4.145E-15 N
 * d) 4.560E-15 N
 * e) 5.015E-15 N

3) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * a) 3.339E+09 N/C2
 * b) 3.673E+09 N/C2
 * c) 4.041E+09 N/C2
 * d) 4.445E+09 N/C2
 * e) 4.889E+09 N/C2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 7.701E+01 N/C
 * b) 8.471E+01 N/C
 * c) 9.318E+01 N/C
 * d) 1.025E+02 N/C
 * e) 1.127E+02 N/C

c05 Q2
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.7 m.  Evaluate $$f(x,y)$$ at x=0.52 m if a=0.88 m, b=1.3 m.  The total charge on the rod is 6 nC.


 * a) 6.804E+00 V/m2
 * b) 7.485E+00 V/m2
 * c) 8.233E+00 V/m2
 * d) 9.056E+00 V/m2
 * e) 9.962E+00 V/m2

2) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 7.701E+01 N/C
 * b) 8.471E+01 N/C
 * c) 9.318E+01 N/C
 * d) 1.025E+02 N/C
 * e) 1.127E+02 N/C

3) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 3.159E+09 N/C2
 * b) 3.475E+09 N/C2
 * c) 3.823E+09 N/C2
 * d) 4.205E+09 N/C2
 * e) 4.626E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 4.171E-14 N
 * b) 4.588E-14 N
 * c) 5.047E-14 N
 * d) 5.551E-14 N
 * e) 6.107E-14 N

c05 R0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * a) 3.719E+01 degrees
 * b) 4.091E+01 degrees
 * c) 4.500E+01 degrees
 * d) 4.950E+01 degrees
 * e) 5.445E+01 degrees

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.0\text{ m}$$ and the surface charge density is $$\sigma=8\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * a) 9.459E+00 V/m2
 * b) 1.040E+01 V/m2
 * c) 1.145E+01 V/m2
 * d) 1.259E+01 V/m2
 * e) 1.385E+01 V/m2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.7 m, b=1.8 m.  The total charge on the rod is 9 nC.


 * a) 6.897E+00 V/m2
 * b) 7.587E+00 V/m2
 * c) 8.345E+00 V/m2
 * d) 9.180E+00 V/m2
 * e) 1.010E+01 V/m2

4) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 8.336E+09 N/C2
 * b) 9.170E+09 N/C2
 * c) 1.009E+10 N/C2
 * d) 1.110E+10 N/C2
 * e) 1.220E+10 N/C2

c05 R1
1) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * a) 5.352E+09 N/C2
 * b) 5.887E+09 N/C2
 * c) 6.476E+09 N/C2
 * d) 7.124E+09 N/C2
 * e) 7.836E+09 N/C2

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=8.7\text{ m}$$ and the surface charge density is $$\sigma=7\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.8\text{ m}$$.


 * a) 3.722E-01 V/m2
 * b) 4.094E-01 V/m2
 * c) 4.504E-01 V/m2
 * d) 4.954E-01 V/m2
 * e) 5.450E-01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * a) 3.719E+01 degrees
 * b) 4.091E+01 degrees
 * c) 4.500E+01 degrees
 * d) 4.950E+01 degrees
 * e) 5.445E+01 degrees

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.3 m.  Evaluate $$f(x,y)$$ at x=0.96 m if a=0.63 m, b=1.4 m.  The total charge on the rod is 3 nC.


 * a) 3.719E+00 V/m2
 * b) 4.091E+00 V/m2
 * c) 4.500E+00 V/m2
 * d) 4.950E+00 V/m2
 * e) 5.445E+00 V/m2

c05 R2
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 5.062E+01 degrees
 * b) 5.569E+01 degrees
 * c) 6.125E+01 degrees
 * d) 6.738E+01 degrees
 * e) 7.412E+01 degrees

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.65 m if a=0.85 m, b=1.8 m.  The total charge on the rod is 5 nC.


 * a) 3.959E+00 V/m2
 * b) 4.355E+00 V/m2
 * c) 4.790E+00 V/m2
 * d) 5.269E+00 V/m2
 * e) 5.796E+00 V/m2

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.9\text{ m}$$.


 * a) 4.295E+00 V/m2
 * b) 4.724E+00 V/m2
 * c) 5.196E+00 V/m2
 * d) 5.716E+00 V/m2
 * e) 6.288E+00 V/m2

c05 S0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.2\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * a) 1.606E+00 V/m2
 * b) 1.767E+00 V/m2
 * c) 1.943E+00 V/m2
 * d) 2.138E+00 V/m2
 * e) 2.351E+00 V/m2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.4 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.69 m, b=2.2 m.  The total charge on the rod is 6 nC.


 * a) 3.161E+00 V/m2
 * b) 3.477E+00 V/m2
 * c) 3.825E+00 V/m2
 * d) 4.208E+00 V/m2
 * e) 4.628E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * a) 5.767E+01 degrees
 * b) 6.343E+01 degrees
 * c) 6.978E+01 degrees
 * d) 7.676E+01 degrees
 * e) 8.443E+01 degrees

4) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.2 m (on axis) away from the loop's center?


 * a) 6.925E+09 N/C2
 * b) 7.617E+09 N/C2
 * c) 8.379E+09 N/C2
 * d) 9.217E+09 N/C2
 * e) 1.014E+10 N/C2

c05 S1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.96 m if a=0.95 m, b=1.8 m.  The total charge on the rod is 7 nC.


 * a) 3.385E+00 V/m2
 * b) 3.724E+00 V/m2
 * c) 4.096E+00 V/m2
 * d) 4.506E+00 V/m2
 * e) 4.957E+00 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 3.629E+01 degrees
 * b) 3.992E+01 degrees
 * c) 4.391E+01 degrees
 * d) 4.830E+01 degrees
 * e) 5.313E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.0\text{ m}$$ and the surface charge density is $$\sigma=8\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * a) 9.459E+00 V/m2
 * b) 1.040E+01 V/m2
 * c) 1.145E+01 V/m2
 * d) 1.259E+01 V/m2
 * e) 1.385E+01 V/m2

4) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 5.581E+09 N/C2
 * b) 6.139E+09 N/C2
 * c) 6.753E+09 N/C2
 * d) 7.428E+09 N/C2
 * e) 8.171E+09 N/C2

c05 S2
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.3\text{ m}$$ and the surface charge density is $$\sigma=4\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * a) 6.877E+00 V/m2
 * b) 7.565E+00 V/m2
 * c) 8.321E+00 V/m2
 * d) 9.153E+00 V/m2
 * e) 1.007E+01 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.377E+01 degrees
 * b) 5.914E+01 degrees
 * c) 6.506E+01 degrees
 * d) 7.157E+01 degrees
 * e) 7.872E+01 degrees

3) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.4 m (on axis) away from the loop's center?


 * a) 7.119E+09 N/C2
 * b) 7.831E+09 N/C2
 * c) 8.614E+09 N/C2
 * d) 9.476E+09 N/C2
 * e) 1.042E+10 N/C2

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.62 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * a) 6.311E+00 V/m2
 * b) 6.943E+00 V/m2
 * c) 7.637E+00 V/m2
 * d) 8.401E+00 V/m2
 * e) 9.241E+00 V/m2

c05 T0
1) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 4.788E+09 N/C2
 * b) 5.267E+09 N/C2
 * c) 5.793E+09 N/C2
 * d) 6.373E+09 N/C2
 * e) 7.010E+09 N/C2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.62 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * a) 6.311E+00 V/m2
 * b) 6.943E+00 V/m2
 * c) 7.637E+00 V/m2
 * d) 8.401E+00 V/m2
 * e) 9.241E+00 V/m2

3) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 9.412E+01 N/C
 * b) 1.035E+02 N/C
 * c) 1.139E+02 N/C
 * d) 1.253E+02 N/C
 * e) 1.378E+02 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 3.961E+01 degrees
 * b) 4.357E+01 degrees
 * c) 4.793E+01 degrees
 * d) 5.272E+01 degrees
 * e) 5.799E+01 degrees

c05 T1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.7 m, b=1.8 m.  The total charge on the rod is 9 nC.


 * a) 6.897E+00 V/m2
 * b) 7.587E+00 V/m2
 * c) 8.345E+00 V/m2
 * d) 9.180E+00 V/m2
 * e) 1.010E+01 V/m2

2) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 2.357E+01 N/C
 * b) 2.593E+01 N/C
 * c) 2.852E+01 N/C
 * d) 3.137E+01 N/C
 * e) 3.451E+01 N/C

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.914E+01 degrees
 * b) 6.506E+01 degrees
 * c) 7.157E+01 degrees
 * d) 7.872E+01 degrees
 * e) 8.659E+01 degrees

4) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.73 m (on axis) away from the loop's center?


 * a) 7.415E+09 N/C2
 * b) 8.156E+09 N/C2
 * c) 8.972E+09 N/C2
 * d) 9.869E+09 N/C2
 * e) 1.086E+10 N/C2

c05 T2
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 9.412E+01 N/C
 * b) 1.035E+02 N/C
 * c) 1.139E+02 N/C
 * d) 1.253E+02 N/C
 * e) 1.378E+02 N/C

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.54 m if a=1.0 m, b=2.0 m.  The total charge on the rod is 3 nC.


 * a) 1.665E+00 V/m2
 * b) 1.831E+00 V/m2
 * c) 2.014E+00 V/m2
 * d) 2.216E+00 V/m2
 * e) 2.437E+00 V/m2

3) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * a) 3.159E+09 N/C2
 * b) 3.475E+09 N/C2
 * c) 3.823E+09 N/C2
 * d) 4.205E+09 N/C2
 * e) 4.626E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.377E+01 degrees
 * b) 5.914E+01 degrees
 * c) 6.506E+01 degrees
 * d) 7.157E+01 degrees
 * e) 7.872E+01 degrees

c05 U0
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.5 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.33 m (on axis) away from the loop's center?


 * a) 1.353E+09 N/C2
 * b) 1.488E+09 N/C2
 * c) 1.637E+09 N/C2
 * d) 1.801E+09 N/C2
 * e) 1.981E+09 N/C2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.5 m if a=0.67 m, b=2.4 m.  The total charge on the rod is 9 nC.


 * a) 5.465E+00 V/m2
 * b) 6.012E+00 V/m2
 * c) 6.613E+00 V/m2
 * d) 7.274E+00 V/m2
 * e) 8.002E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 5.062E+01 degrees
 * b) 5.569E+01 degrees
 * c) 6.125E+01 degrees
 * d) 6.738E+01 degrees
 * e) 7.412E+01 degrees

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 4.171E-14 N
 * b) 4.588E-14 N
 * c) 5.047E-14 N
 * d) 5.551E-14 N
 * e) 6.107E-14 N

c05 U1
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.5 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.33 m (on axis) away from the loop's center?


 * a) 1.353E+09 N/C2
 * b) 1.488E+09 N/C2
 * c) 1.637E+09 N/C2
 * d) 1.801E+09 N/C2
 * e) 1.981E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 5.569E+01 degrees
 * b) 6.125E+01 degrees
 * c) 6.738E+01 degrees
 * d) 7.412E+01 degrees
 * e) 8.153E+01 degrees

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.62 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * a) 6.311E+00 V/m2
 * b) 6.943E+00 V/m2
 * c) 7.637E+00 V/m2
 * d) 8.401E+00 V/m2
 * e) 9.241E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 8.259E-15 N
 * b) 9.085E-15 N
 * c) 9.993E-15 N
 * d) 1.099E-14 N
 * e) 1.209E-14 N

c05 U2
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.1 m, b=1.4 m.  The total charge on the rod is 5 nC.


 * a) 4.602E+00 V/m2
 * b) 5.062E+00 V/m2
 * c) 5.568E+00 V/m2
 * d) 6.125E+00 V/m2
 * e) 6.738E+00 V/m2

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.2 m (on axis) away from the loop's center?


 * a) 6.925E+09 N/C2
 * b) 7.617E+09 N/C2
 * c) 8.379E+09 N/C2
 * d) 9.217E+09 N/C2
 * e) 1.014E+10 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.377E+01 degrees
 * b) 5.914E+01 degrees
 * c) 6.506E+01 degrees
 * d) 7.157E+01 degrees
 * e) 7.872E+01 degrees

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 5.243E-14 N
 * b) 5.768E-14 N
 * c) 6.344E-14 N
 * d) 6.979E-14 N
 * e) 7.677E-14 N

c05 V0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 5.569E+01 degrees
 * b) 6.125E+01 degrees
 * c) 6.738E+01 degrees
 * d) 7.412E+01 degrees
 * e) 8.153E+01 degrees

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.65 m if a=0.85 m, b=1.8 m.  The total charge on the rod is 5 nC.


 * a) 3.959E+00 V/m2
 * b) 4.355E+00 V/m2
 * c) 4.790E+00 V/m2
 * d) 5.269E+00 V/m2
 * e) 5.796E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * a) 8.613E-15 N
 * b) 9.474E-15 N
 * c) 1.042E-14 N
 * d) 1.146E-14 N
 * e) 1.261E-14 N

4) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 2.357E+01 N/C
 * b) 2.593E+01 N/C
 * c) 2.852E+01 N/C
 * d) 3.137E+01 N/C
 * e) 3.451E+01 N/C

c05 V1
1) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 3.500E+01 N/C
 * b) 3.850E+01 N/C
 * c) 4.235E+01 N/C
 * d) 4.659E+01 N/C
 * e) 5.125E+01 N/C

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.3 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.82 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * a) 8.690E+00 V/m2
 * b) 9.559E+00 V/m2
 * c) 1.051E+01 V/m2
 * d) 1.157E+01 V/m2
 * e) 1.272E+01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 1.473E-14 N
 * b) 1.620E-14 N
 * c) 1.782E-14 N
 * d) 1.960E-14 N
 * e) 2.156E-14 N

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 6.125E+01 degrees
 * b) 6.738E+01 degrees
 * c) 7.412E+01 degrees
 * d) 8.153E+01 degrees
 * e) 8.968E+01 degrees

c05 V2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 4.743E+01 degrees
 * b) 5.217E+01 degrees
 * c) 5.739E+01 degrees
 * d) 6.313E+01 degrees
 * e) 6.944E+01 degrees

2) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 8 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 6.171E+01 N/C
 * b) 6.788E+01 N/C
 * c) 7.467E+01 N/C
 * d) 8.214E+01 N/C
 * e) 9.035E+01 N/C

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.2 m.  Evaluate $$f(x,y)$$ at x=0.73 m if a=0.52 m, b=1.6 m.  The total charge on the rod is 7 nC.


 * a) 9.655E+00 V/m2
 * b) 1.062E+01 V/m2
 * c) 1.168E+01 V/m2
 * d) 1.285E+01 V/m2
 * e) 1.414E+01 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 5.243E-14 N
 * b) 5.768E-14 N
 * c) 6.344E-14 N
 * d) 6.979E-14 N
 * e) 7.677E-14 N

c05 W0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * a) 4.743E+01 degrees
 * b) 5.217E+01 degrees
 * c) 5.739E+01 degrees
 * d) 6.313E+01 degrees
 * e) 6.944E+01 degrees

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.1 m, b=1.4 m.  The total charge on the rod is 5 nC.


 * a) 4.602E+00 V/m2
 * b) 5.062E+00 V/m2
 * c) 5.568E+00 V/m2
 * d) 6.125E+00 V/m2
 * e) 6.738E+00 V/m2

3) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.73 m (on axis) away from the loop's center?


 * a) 7.415E+09 N/C2
 * b) 8.156E+09 N/C2
 * c) 8.972E+09 N/C2
 * d) 9.869E+09 N/C2
 * e) 1.086E+10 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 5.243E-14 N
 * b) 5.768E-14 N
 * c) 6.344E-14 N
 * d) 6.979E-14 N
 * e) 7.677E-14 N

c05 W1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 9.958E-15 N
 * b) 1.095E-14 N
 * c) 1.205E-14 N
 * d) 1.325E-14 N
 * e) 1.458E-14 N

2) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 4.788E+09 N/C2
 * b) 5.267E+09 N/C2
 * c) 5.793E+09 N/C2
 * d) 6.373E+09 N/C2
 * e) 7.010E+09 N/C2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.5 m if a=0.67 m, b=2.4 m.  The total charge on the rod is 9 nC.


 * a) 5.465E+00 V/m2
 * b) 6.012E+00 V/m2
 * c) 6.613E+00 V/m2
 * d) 7.274E+00 V/m2
 * e) 8.002E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * a) 3.629E+01 degrees
 * b) 3.992E+01 degrees
 * c) 4.391E+01 degrees
 * d) 4.830E+01 degrees
 * e) 5.313E+01 degrees

c05 W2
1) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * a) 3.339E+09 N/C2
 * b) 3.673E+09 N/C2
 * c) 4.041E+09 N/C2
 * d) 4.445E+09 N/C2
 * e) 4.889E+09 N/C2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.0 m, b=1.8 m.  The total charge on the rod is 6 nC.


 * a) 3.610E+00 V/m2
 * b) 3.971E+00 V/m2
 * c) 4.368E+00 V/m2
 * d) 4.804E+00 V/m2
 * e) 5.285E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 5.914E+01 degrees
 * b) 6.506E+01 degrees
 * c) 7.157E+01 degrees
 * d) 7.872E+01 degrees
 * e) 8.659E+01 degrees

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * a) 8.259E-15 N
 * b) 9.085E-15 N
 * c) 9.993E-15 N
 * d) 1.099E-14 N
 * e) 1.209E-14 N

c05 X0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * a) 9.750E-15 N
 * b) 1.072E-14 N
 * c) 1.180E-14 N
 * d) 1.298E-14 N
 * e) 1.427E-14 N

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=4.3\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.4\text{ m}$$.


 * a) 5.647E+00 V/m2
 * b) 6.212E+00 V/m2
 * c) 6.833E+00 V/m2
 * d) 7.517E+00 V/m2
 * e) 8.268E+00 V/m2

3) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 8.471E+01 N/C
 * b) 9.318E+01 N/C
 * c) 1.025E+02 N/C
 * d) 1.127E+02 N/C
 * e) 1.240E+02 N/C

4) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

c05 X1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=2e$$?


 * a) 3.391E-14 N
 * b) 3.731E-14 N
 * c) 4.104E-14 N
 * d) 4.514E-14 N
 * e) 4.965E-14 N

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.2\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.2\text{ m}$$.


 * a) 3.228E+00 V/m2
 * b) 3.551E+00 V/m2
 * c) 3.906E+00 V/m2
 * d) 4.297E+00 V/m2
 * e) 4.727E+00 V/m2

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 9.546E+01 N/C
 * b) 1.050E+02 N/C
 * c) 1.155E+02 N/C
 * d) 1.271E+02 N/C
 * e) 1.398E+02 N/C

4) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * a) 5.352E+09 N/C2
 * b) 5.887E+09 N/C2
 * c) 6.476E+09 N/C2
 * d) 7.124E+09 N/C2
 * e) 7.836E+09 N/C2

c05 X2
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.83\text{ m}$$.


 * a) 2.898E+01 V/m2
 * b) 3.188E+01 V/m2
 * c) 3.507E+01 V/m2
 * d) 3.857E+01 V/m2
 * e) 4.243E+01 V/m2

2) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * a) 1.764E+09 N/C2
 * b) 1.941E+09 N/C2
 * c) 2.135E+09 N/C2
 * d) 2.348E+09 N/C2
 * e) 2.583E+09 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 2.544E-14 N
 * b) 2.798E-14 N
 * c) 3.078E-14 N
 * d) 3.385E-14 N
 * e) 3.724E-14 N

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 7.000E+01 N/C
 * b) 7.701E+01 N/C
 * c) 8.471E+01 N/C
 * d) 9.318E+01 N/C
 * e) 1.025E+02 N/C

c05 Y0
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 9.412E+01 N/C
 * b) 1.035E+02 N/C
 * c) 1.139E+02 N/C
 * d) 1.253E+02 N/C
 * e) 1.378E+02 N/C

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.3\text{ m}$$ and the surface charge density is $$\sigma=4\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * a) 6.877E+00 V/m2
 * b) 7.565E+00 V/m2
 * c) 8.321E+00 V/m2
 * d) 9.153E+00 V/m2
 * e) 1.007E+01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * a) 5.243E+01 degrees
 * b) 5.767E+01 degrees
 * c) 6.343E+01 degrees
 * d) 6.978E+01 degrees
 * e) 7.676E+01 degrees

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * a) 8.613E-15 N
 * b) 9.474E-15 N
 * c) 1.042E-14 N
 * d) 1.146E-14 N
 * e) 1.261E-14 N

c05 Y1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 1.028E-14 N
 * b) 1.130E-14 N
 * c) 1.244E-14 N
 * d) 1.368E-14 N
 * e) 1.505E-14 N

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=6e$$?


 * a) 5.243E+01 degrees
 * b) 5.767E+01 degrees
 * c) 6.343E+01 degrees
 * d) 6.978E+01 degrees
 * e) 7.676E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.2\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.2\text{ m}$$.


 * a) 3.228E+00 V/m2
 * b) 3.551E+00 V/m2
 * c) 3.906E+00 V/m2
 * d) 4.297E+00 V/m2
 * e) 4.727E+00 V/m2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 5.647E+01 N/C
 * b) 6.212E+01 N/C
 * c) 6.833E+01 N/C
 * d) 7.516E+01 N/C
 * e) 8.268E+01 N/C

c05 Y2
1) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * a) 3.214E+01 N/C
 * b) 3.536E+01 N/C
 * c) 3.889E+01 N/C
 * d) 4.278E+01 N/C
 * e) 4.706E+01 N/C

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * a) 1.308E-13 N
 * b) 1.439E-13 N
 * c) 1.583E-13 N
 * d) 1.741E-13 N
 * e) 1.915E-13 N

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.0\text{ m}$$ and the surface charge density is $$\sigma=8\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * a) 9.459E+00 V/m2
 * b) 1.040E+01 V/m2
 * c) 1.145E+01 V/m2
 * d) 1.259E+01 V/m2
 * e) 1.385E+01 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * a) 5.272E+01 degrees
 * b) 5.799E+01 degrees
 * c) 6.379E+01 degrees
 * d) 7.017E+01 degrees
 * e) 7.719E+01 degrees

c05 Z0
1) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 9.546E+01 N/C
 * b) 1.050E+02 N/C
 * c) 1.155E+02 N/C
 * d) 1.271E+02 N/C
 * e) 1.398E+02 N/C

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.3 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.82 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * a) 8.690E+00 V/m2
 * b) 9.559E+00 V/m2
 * c) 1.051E+01 V/m2
 * d) 1.157E+01 V/m2
 * e) 1.272E+01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * a) 9.958E-15 N
 * b) 1.095E-14 N
 * c) 1.205E-14 N
 * d) 1.325E-14 N
 * e) 1.458E-14 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.0\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.2\text{ m}$$.


 * a) 8.933E+00 V/m2
 * b) 9.826E+00 V/m2
 * c) 1.081E+01 V/m2
 * d) 1.189E+01 V/m2
 * e) 1.308E+01 V/m2

c05 Z1
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.83\text{ m}$$.


 * a) 2.898E+01 V/m2
 * b) 3.188E+01 V/m2
 * c) 3.507E+01 V/m2
 * d) 3.857E+01 V/m2
 * e) 4.243E+01 V/m2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.2 m.  Evaluate $$f(x,y)$$ at x=0.54 m if a=0.76 m, b=1.7 m.  The total charge on the rod is 8 nC.


 * a) 1.399E+01 V/m2
 * b) 1.539E+01 V/m2
 * c) 1.693E+01 V/m2
 * d) 1.862E+01 V/m2
 * e) 2.049E+01 V/m2

3) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * a) 1.694E+02 N/C
 * b) 1.864E+02 N/C
 * c) 2.050E+02 N/C
 * d) 2.255E+02 N/C
 * e) 2.480E+02 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 2.544E-14 N
 * b) 2.798E-14 N
 * c) 3.078E-14 N
 * d) 3.385E-14 N
 * e) 3.724E-14 N

c05 Z2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * a) 1.028E-14 N
 * b) 1.130E-14 N
 * c) 1.244E-14 N
 * d) 1.368E-14 N
 * e) 1.505E-14 N

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.4\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.56\text{ m}$$.


 * a) 2.567E+01 V/m2
 * b) 2.824E+01 V/m2
 * c) 3.106E+01 V/m2
 * d) 3.417E+01 V/m2
 * e) 3.759E+01 V/m2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.7 m.  Evaluate $$f(x,y)$$ at x=0.76 m if a=1.1 m, b=1.6 m.  The total charge on the rod is 8 nC.


 * a) 5.267E+00 V/m2
 * b) 5.794E+00 V/m2
 * c) 6.374E+00 V/m2
 * d) 7.011E+00 V/m2
 * e) 7.712E+00 V/m2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * a) 3.214E+01 N/C
 * b) 3.536E+01 N/C
 * c) 3.889E+01 N/C
 * d) 4.278E+01 N/C
 * e) 4.706E+01 N/C


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Key: A0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * -a) 7.517E+00 V/m2
 * -b) 8.269E+00 V/m2
 * -c) 9.096E+00 V/m2
 * -d) 1.001E+01 V/m2
 * +e) 1.101E+01 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * -a) 2.544E-14 N
 * -b) 2.798E-14 N
 * -c) 3.078E-14 N
 * +d) 3.385E-14 N
 * -e) 3.724E-14 N

3) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * +a) 4.788E+09 N/C2
 * -b) 5.267E+09 N/C2
 * -c) 5.793E+09 N/C2
 * -d) 6.373E+09 N/C2
 * -e) 7.010E+09 N/C2

4) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 4.821E+01 N/C
 * -b) 5.303E+01 N/C
 * -c) 5.834E+01 N/C
 * -d) 6.417E+01 N/C
 * +e) 7.059E+01 N/C

Click these links for the keys:

Key: A1
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * -a) 7.517E+00 V/m2
 * -b) 8.269E+00 V/m2
 * -c) 9.096E+00 V/m2
 * -d) 1.001E+01 V/m2
 * +e) 1.101E+01 V/m2

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.2 m (on axis) away from the loop's center?


 * -a) 6.925E+09 N/C2
 * -b) 7.617E+09 N/C2
 * +c) 8.379E+09 N/C2
 * -d) 9.217E+09 N/C2
 * -e) 1.014E+10 N/C2

3) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * -a) 4.492E+01 N/C
 * +b) 4.941E+01 N/C
 * -c) 5.435E+01 N/C
 * -d) 5.979E+01 N/C
 * -e) 6.577E+01 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * -a) 5.014E-14 N
 * -b) 5.515E-14 N
 * -c) 6.067E-14 N
 * -d) 6.674E-14 N
 * +e) 7.341E-14 N

Click these links for the keys:

Key: A2
1) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * -a) 3.339E+09 N/C2
 * -b) 3.673E+09 N/C2
 * -c) 4.041E+09 N/C2
 * +d) 4.445E+09 N/C2
 * -e) 4.889E+09 N/C2

2) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 8.471E+01 N/C
 * -b) 9.318E+01 N/C
 * -c) 1.025E+02 N/C
 * -d) 1.127E+02 N/C
 * -e) 1.240E+02 N/C

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.2\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.2\text{ m}$$.


 * -a) 3.228E+00 V/m2
 * -b) 3.551E+00 V/m2
 * -c) 3.906E+00 V/m2
 * -d) 4.297E+00 V/m2
 * +e) 4.727E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 2.036E-14 N
 * -b) 2.240E-14 N
 * +c) 2.464E-14 N
 * -d) 2.710E-14 N
 * -e) 2.981E-14 N

Click these links for the keys:

Key: B0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * -a) 7.517E+00 V/m2
 * -b) 8.269E+00 V/m2
 * -c) 9.096E+00 V/m2
 * -d) 1.001E+01 V/m2
 * +e) 1.101E+01 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 2.036E-14 N
 * -b) 2.240E-14 N
 * +c) 2.464E-14 N
 * -d) 2.710E-14 N
 * -e) 2.981E-14 N

3) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 2.571E+01 N/C
 * -b) 2.828E+01 N/C
 * -c) 3.111E+01 N/C
 * -d) 3.422E+01 N/C
 * +e) 3.765E+01 N/C

4) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

Click these links for the keys:

Key: B1
1) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 8 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * -a) 6.171E+01 N/C
 * -b) 6.788E+01 N/C
 * -c) 7.467E+01 N/C
 * -d) 8.214E+01 N/C
 * +e) 9.035E+01 N/C

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * -a) 1.308E-13 N
 * -b) 1.439E-13 N
 * -c) 1.583E-13 N
 * +d) 1.741E-13 N
 * -e) 1.915E-13 N

3) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 3.159E+09 N/C2
 * -b) 3.475E+09 N/C2
 * -c) 3.823E+09 N/C2
 * -d) 4.205E+09 N/C2
 * -e) 4.626E+09 N/C2

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=8.1\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=4.2\text{ m}$$.


 * -a) 5.134E-01 V/m2
 * +b) 5.648E-01 V/m2
 * -c) 6.212E-01 V/m2
 * -d) 6.834E-01 V/m2
 * -e) 7.517E-01 V/m2

Click these links for the keys:

Key: B2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 2.248E-14 N
 * -b) 2.473E-14 N
 * +c) 2.721E-14 N
 * -d) 2.993E-14 N
 * -e) 3.292E-14 N

2) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * -a) 3.339E+09 N/C2
 * -b) 3.673E+09 N/C2
 * -c) 4.041E+09 N/C2
 * +d) 4.445E+09 N/C2
 * -e) 4.889E+09 N/C2

3) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * -a) 4.492E+01 N/C
 * +b) 4.941E+01 N/C
 * -c) 5.435E+01 N/C
 * -d) 5.979E+01 N/C
 * -e) 6.577E+01 N/C

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.9\text{ m}$$.


 * -a) 4.295E+00 V/m2
 * +b) 4.724E+00 V/m2
 * -c) 5.196E+00 V/m2
 * -d) 5.716E+00 V/m2
 * -e) 6.288E+00 V/m2

Click these links for the keys:

Key: C0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.0\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.2\text{ m}$$.


 * -a) 8.933E+00 V/m2
 * -b) 9.826E+00 V/m2
 * +c) 1.081E+01 V/m2
 * -d) 1.189E+01 V/m2
 * -e) 1.308E+01 V/m2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.0 m, b=1.8 m.  The total charge on the rod is 6 nC.


 * -a) 3.610E+00 V/m2
 * +b) 3.971E+00 V/m2
 * -c) 4.368E+00 V/m2
 * -d) 4.804E+00 V/m2
 * -e) 5.285E+00 V/m2

3) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 1.202E+09 N/C2
 * -b) 1.322E+09 N/C2
 * -c) 1.454E+09 N/C2
 * -d) 1.599E+09 N/C2
 * +e) 1.759E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.377E+01 degrees
 * -b) 5.914E+01 degrees
 * -c) 6.506E+01 degrees
 * +d) 7.157E+01 degrees
 * -e) 7.872E+01 degrees

Click these links for the keys:

Key: C1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.65 m if a=0.85 m, b=1.8 m.  The total charge on the rod is 5 nC.


 * -a) 3.959E+00 V/m2
 * +b) 4.355E+00 V/m2
 * -c) 4.790E+00 V/m2
 * -d) 5.269E+00 V/m2
 * -e) 5.796E+00 V/m2

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.0\text{ m}$$ and the surface charge density is $$\sigma=8\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * -a) 9.459E+00 V/m2
 * +b) 1.040E+01 V/m2
 * -c) 1.145E+01 V/m2
 * -d) 1.259E+01 V/m2
 * -e) 1.385E+01 V/m2

3) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.377E+01 degrees
 * -b) 5.914E+01 degrees
 * -c) 6.506E+01 degrees
 * +d) 7.157E+01 degrees
 * -e) 7.872E+01 degrees

Click these links for the keys:

Key: C2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 5.569E+01 degrees
 * -b) 6.125E+01 degrees
 * +c) 6.738E+01 degrees
 * -d) 7.412E+01 degrees
 * -e) 8.153E+01 degrees

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * -a) 7.517E+00 V/m2
 * -b) 8.269E+00 V/m2
 * -c) 9.096E+00 V/m2
 * -d) 1.001E+01 V/m2
 * +e) 1.101E+01 V/m2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.62 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * -a) 6.311E+00 V/m2
 * -b) 6.943E+00 V/m2
 * +c) 7.637E+00 V/m2
 * -d) 8.401E+00 V/m2
 * -e) 9.241E+00 V/m2

4) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * -a) 3.339E+09 N/C2
 * -b) 3.673E+09 N/C2
 * -c) 4.041E+09 N/C2
 * +d) 4.445E+09 N/C2
 * -e) 4.889E+09 N/C2

Click these links for the keys:

Key: D0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.8\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * -a) 1.258E+00 V/m2
 * -b) 1.384E+00 V/m2
 * -c) 1.522E+00 V/m2
 * +d) 1.674E+00 V/m2
 * -e) 1.842E+00 V/m2

2) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 2.357E+01 N/C
 * -b) 2.593E+01 N/C
 * -c) 2.852E+01 N/C
 * +d) 3.137E+01 N/C
 * -e) 3.451E+01 N/C

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=2e$$?


 * -a) 3.876E-14 N
 * -b) 4.263E-14 N
 * -c) 4.690E-14 N
 * +d) 5.159E-14 N
 * -e) 5.675E-14 N

4) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

Click these links for the keys:

Key: D1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 1.473E-14 N
 * -b) 1.620E-14 N
 * -c) 1.782E-14 N
 * -d) 1.960E-14 N
 * +e) 2.156E-14 N

2) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.99 m (on axis) away from the loop's center?


 * -a) 2.429E+09 N/C2
 * +b) 2.672E+09 N/C2
 * -c) 2.939E+09 N/C2
 * -d) 3.233E+09 N/C2
 * -e) 3.556E+09 N/C2

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * -a) 7.820E-01 V/m2
 * +b) 8.602E-01 V/m2
 * -c) 9.462E-01 V/m2
 * -d) 1.041E+00 V/m2
 * -e) 1.145E+00 V/m2

4) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 4.821E+01 N/C
 * -b) 5.303E+01 N/C
 * -c) 5.834E+01 N/C
 * -d) 6.417E+01 N/C
 * +e) 7.059E+01 N/C

Click these links for the keys:

Key: D2
1) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * +a) 5.647E+01 N/C
 * -b) 6.212E+01 N/C
 * -c) 6.833E+01 N/C
 * -d) 7.516E+01 N/C
 * -e) 8.268E+01 N/C

2) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 3.159E+09 N/C2
 * -b) 3.475E+09 N/C2
 * -c) 3.823E+09 N/C2
 * -d) 4.205E+09 N/C2
 * -e) 4.626E+09 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=2e$$?


 * -a) 3.391E-14 N
 * -b) 3.731E-14 N
 * -c) 4.104E-14 N
 * +d) 4.514E-14 N
 * -e) 4.965E-14 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * -a) 7.517E+00 V/m2
 * -b) 8.269E+00 V/m2
 * -c) 9.096E+00 V/m2
 * -d) 1.001E+01 V/m2
 * +e) 1.101E+01 V/m2

Click these links for the keys:

Key: E0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=2e$$?


 * -a) 3.426E-15 N
 * -b) 3.768E-15 N
 * -c) 4.145E-15 N
 * -d) 4.560E-15 N
 * +e) 5.015E-15 N

2) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 6.534E+01 N/C
 * -b) 7.187E+01 N/C
 * +c) 7.906E+01 N/C
 * -d) 8.696E+01 N/C
 * -e) 9.566E+01 N/C

3) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.73 m (on axis) away from the loop's center?


 * -a) 7.415E+09 N/C2
 * -b) 8.156E+09 N/C2
 * -c) 8.972E+09 N/C2
 * -d) 9.869E+09 N/C2
 * +e) 1.086E+10 N/C2

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.4 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.69 m, b=2.2 m.  The total charge on the rod is 6 nC.


 * -a) 3.161E+00 V/m2
 * -b) 3.477E+00 V/m2
 * -c) 3.825E+00 V/m2
 * -d) 4.208E+00 V/m2
 * +e) 4.628E+00 V/m2

Click these links for the keys:

Key: E1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.2 m.  Evaluate $$f(x,y)$$ at x=0.54 m if a=0.76 m, b=1.7 m.  The total charge on the rod is 8 nC.


 * -a) 1.399E+01 V/m2
 * +b) 1.539E+01 V/m2
 * -c) 1.693E+01 V/m2
 * -d) 1.862E+01 V/m2
 * -e) 2.049E+01 V/m2

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.35 m (on axis) away from the loop's center?


 * -a) 4.142E+09 N/C2
 * -b) 4.556E+09 N/C2
 * +c) 5.012E+09 N/C2
 * -d) 5.513E+09 N/C2
 * -e) 6.064E+09 N/C2

3) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 6.534E+01 N/C
 * -b) 7.187E+01 N/C
 * +c) 7.906E+01 N/C
 * -d) 8.696E+01 N/C
 * -e) 9.566E+01 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * -a) 2.544E-14 N
 * -b) 2.798E-14 N
 * -c) 3.078E-14 N
 * +d) 3.385E-14 N
 * -e) 3.724E-14 N

Click these links for the keys:

Key: E2
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.0 m, b=1.8 m.  The total charge on the rod is 6 nC.


 * -a) 3.610E+00 V/m2
 * +b) 3.971E+00 V/m2
 * -c) 4.368E+00 V/m2
 * -d) 4.804E+00 V/m2
 * -e) 5.285E+00 V/m2

2) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 6.534E+01 N/C
 * -b) 7.187E+01 N/C
 * +c) 7.906E+01 N/C
 * -d) 8.696E+01 N/C
 * -e) 9.566E+01 N/C

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * -a) 2.544E-14 N
 * -b) 2.798E-14 N
 * -c) 3.078E-14 N
 * +d) 3.385E-14 N
 * -e) 3.724E-14 N

4) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

Click these links for the keys:

Key: F0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * -a) 2.544E-14 N
 * -b) 2.798E-14 N
 * -c) 3.078E-14 N
 * +d) 3.385E-14 N
 * -e) 3.724E-14 N

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 3.672E+09 N/C2
 * -b) 4.039E+09 N/C2
 * -c) 4.443E+09 N/C2
 * +d) 4.887E+09 N/C2
 * -e) 5.376E+09 N/C2

3) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 9.412E+01 N/C
 * -b) 1.035E+02 N/C
 * -c) 1.139E+02 N/C
 * -d) 1.253E+02 N/C
 * -e) 1.378E+02 N/C

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * -a) 8.253E-01 V/m2
 * -b) 9.079E-01 V/m2
 * +c) 9.987E-01 V/m2
 * -d) 1.099E+00 V/m2
 * -e) 1.208E+00 V/m2

Click these links for the keys:

Key: F1
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.0\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.2\text{ m}$$.


 * -a) 8.933E+00 V/m2
 * -b) 9.826E+00 V/m2
 * +c) 1.081E+01 V/m2
 * -d) 1.189E+01 V/m2
 * -e) 1.308E+01 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=2e$$?


 * +a) 5.732E-15 N
 * -b) 6.305E-15 N
 * -c) 6.936E-15 N
 * -d) 7.629E-15 N
 * -e) 8.392E-15 N

3) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 3.214E+01 N/C
 * -b) 3.536E+01 N/C
 * -c) 3.889E+01 N/C
 * -d) 4.278E+01 N/C
 * +e) 4.706E+01 N/C

4) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 3.159E+09 N/C2
 * -b) 3.475E+09 N/C2
 * -c) 3.823E+09 N/C2
 * -d) 4.205E+09 N/C2
 * -e) 4.626E+09 N/C2

Click these links for the keys:

Key: F2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 8.259E-15 N
 * -b) 9.085E-15 N
 * -c) 9.993E-15 N
 * -d) 1.099E-14 N
 * +e) 1.209E-14 N

2) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 3.159E+09 N/C2
 * -b) 3.475E+09 N/C2
 * -c) 3.823E+09 N/C2
 * -d) 4.205E+09 N/C2
 * -e) 4.626E+09 N/C2

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.83\text{ m}$$.


 * +a) 2.898E+01 V/m2
 * -b) 3.188E+01 V/m2
 * -c) 3.507E+01 V/m2
 * -d) 3.857E+01 V/m2
 * -e) 4.243E+01 V/m2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 3.214E+01 N/C
 * -b) 3.536E+01 N/C
 * -c) 3.889E+01 N/C
 * -d) 4.278E+01 N/C
 * +e) 4.706E+01 N/C

Click these links for the keys:

Key: G0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.1\text{ m}$$.


 * -a) 7.517E+00 V/m2
 * -b) 8.269E+00 V/m2
 * -c) 9.096E+00 V/m2
 * -d) 1.001E+01 V/m2
 * +e) 1.101E+01 V/m2

2) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 1.202E+09 N/C2
 * -b) 1.322E+09 N/C2
 * -c) 1.454E+09 N/C2
 * -d) 1.599E+09 N/C2
 * +e) 1.759E+09 N/C2

3) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 7.701E+01 N/C
 * +b) 8.471E+01 N/C
 * -c) 9.318E+01 N/C
 * -d) 1.025E+02 N/C
 * -e) 1.127E+02 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.377E+01 degrees
 * -b) 5.914E+01 degrees
 * -c) 6.506E+01 degrees
 * +d) 7.157E+01 degrees
 * -e) 7.872E+01 degrees

Click these links for the keys:

Key: G1
1) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 8 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * -a) 6.171E+01 N/C
 * -b) 6.788E+01 N/C
 * -c) 7.467E+01 N/C
 * -d) 8.214E+01 N/C
 * +e) 9.035E+01 N/C

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.377E+01 degrees
 * -b) 5.914E+01 degrees
 * -c) 6.506E+01 degrees
 * +d) 7.157E+01 degrees
 * -e) 7.872E+01 degrees

3) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.5 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.33 m (on axis) away from the loop's center?


 * -a) 1.353E+09 N/C2
 * -b) 1.488E+09 N/C2
 * +c) 1.637E+09 N/C2
 * -d) 1.801E+09 N/C2
 * -e) 1.981E+09 N/C2

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=4.3\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.4\text{ m}$$.


 * +a) 5.647E+00 V/m2
 * -b) 6.212E+00 V/m2
 * -c) 6.833E+00 V/m2
 * -d) 7.517E+00 V/m2
 * -e) 8.268E+00 V/m2

Click these links for the keys:

Key: G2
1) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 3.672E+09 N/C2
 * -b) 4.039E+09 N/C2
 * -c) 4.443E+09 N/C2
 * +d) 4.887E+09 N/C2
 * -e) 5.376E+09 N/C2

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=9.1\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=6.2\text{ m}$$.


 * -a) 4.961E-01 V/m2
 * -b) 5.457E-01 V/m2
 * -c) 6.002E-01 V/m2
 * -d) 6.603E-01 V/m2
 * +e) 7.263E-01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 5.272E+01 degrees
 * +b) 5.799E+01 degrees
 * -c) 6.379E+01 degrees
 * -d) 7.017E+01 degrees
 * -e) 7.719E+01 degrees

4) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 4.821E+01 N/C
 * -b) 5.303E+01 N/C
 * -c) 5.834E+01 N/C
 * -d) 6.417E+01 N/C
 * +e) 7.059E+01 N/C

Click these links for the keys:

Key: H0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * +a) 6.343E+01 degrees
 * -b) 6.978E+01 degrees
 * -c) 7.676E+01 degrees
 * -d) 8.443E+01 degrees
 * -e) 9.288E+01 degrees

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * -a) 7.820E-01 V/m2
 * +b) 8.602E-01 V/m2
 * -c) 9.462E-01 V/m2
 * -d) 1.041E+00 V/m2
 * -e) 1.145E+00 V/m2

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 4.821E+01 N/C
 * -b) 5.303E+01 N/C
 * -c) 5.834E+01 N/C
 * -d) 6.417E+01 N/C
 * +e) 7.059E+01 N/C

4) A ring is uniformly charged with a net charge of 6 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.4 m (on axis) away from the loop's center?


 * -a) 2.013E+09 N/C2
 * -b) 2.214E+09 N/C2
 * -c) 2.435E+09 N/C2
 * -d) 2.679E+09 N/C2
 * +e) 2.947E+09 N/C2

Click these links for the keys:

Key: H1
1) A ring is uniformly charged with a net charge of 6 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.4 m (on axis) away from the loop's center?


 * -a) 2.013E+09 N/C2
 * -b) 2.214E+09 N/C2
 * -c) 2.435E+09 N/C2
 * -d) 2.679E+09 N/C2
 * +e) 2.947E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 5.272E+01 degrees
 * +b) 5.799E+01 degrees
 * -c) 6.379E+01 degrees
 * -d) 7.017E+01 degrees
 * -e) 7.719E+01 degrees

3) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 8 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * -a) 6.171E+01 N/C
 * -b) 6.788E+01 N/C
 * -c) 7.467E+01 N/C
 * -d) 8.214E+01 N/C
 * +e) 9.035E+01 N/C

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * -a) 8.253E-01 V/m2
 * -b) 9.079E-01 V/m2
 * +c) 9.987E-01 V/m2
 * -d) 1.099E+00 V/m2
 * -e) 1.208E+00 V/m2

Click these links for the keys:

Key: H2
1) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * +a) 4.788E+09 N/C2
 * -b) 5.267E+09 N/C2
 * -c) 5.793E+09 N/C2
 * -d) 6.373E+09 N/C2
 * -e) 7.010E+09 N/C2

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.8\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * -a) 1.258E+00 V/m2
 * -b) 1.384E+00 V/m2
 * -c) 1.522E+00 V/m2
 * +d) 1.674E+00 V/m2
 * -e) 1.842E+00 V/m2

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 4.821E+01 N/C
 * -b) 5.303E+01 N/C
 * -c) 5.834E+01 N/C
 * -d) 6.417E+01 N/C
 * +e) 7.059E+01 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * -a) 3.719E+01 degrees
 * -b) 4.091E+01 degrees
 * +c) 4.500E+01 degrees
 * -d) 4.950E+01 degrees
 * -e) 5.445E+01 degrees

Click these links for the keys:

Key: I0
1) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * +a) 4.788E+09 N/C2
 * -b) 5.267E+09 N/C2
 * -c) 5.793E+09 N/C2
 * -d) 6.373E+09 N/C2
 * -e) 7.010E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 5.569E+01 degrees
 * -b) 6.125E+01 degrees
 * +c) 6.738E+01 degrees
 * -d) 7.412E+01 degrees
 * -e) 8.153E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.8\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * -a) 1.258E+00 V/m2
 * -b) 1.384E+00 V/m2
 * -c) 1.522E+00 V/m2
 * +d) 1.674E+00 V/m2
 * -e) 1.842E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 8.259E-15 N
 * -b) 9.085E-15 N
 * -c) 9.993E-15 N
 * -d) 1.099E-14 N
 * +e) 1.209E-14 N

Click these links for the keys:

Key: I1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 3.961E+01 degrees
 * -b) 4.357E+01 degrees
 * -c) 4.793E+01 degrees
 * -d) 5.272E+01 degrees
 * +e) 5.799E+01 degrees

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 2.248E-14 N
 * -b) 2.473E-14 N
 * +c) 2.721E-14 N
 * -d) 2.993E-14 N
 * -e) 3.292E-14 N

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.9\text{ m}$$.


 * -a) 4.295E+00 V/m2
 * +b) 4.724E+00 V/m2
 * -c) 5.196E+00 V/m2
 * -d) 5.716E+00 V/m2
 * -e) 6.288E+00 V/m2

4) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 1.202E+09 N/C2
 * -b) 1.322E+09 N/C2
 * -c) 1.454E+09 N/C2
 * -d) 1.599E+09 N/C2
 * +e) 1.759E+09 N/C2

Click these links for the keys:

Key: I2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 6.125E+01 degrees
 * +b) 6.738E+01 degrees
 * -c) 7.412E+01 degrees
 * -d) 8.153E+01 degrees
 * -e) 8.968E+01 degrees

2) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * -a) 1.308E-13 N
 * -b) 1.439E-13 N
 * -c) 1.583E-13 N
 * +d) 1.741E-13 N
 * -e) 1.915E-13 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * -a) 7.820E-01 V/m2
 * +b) 8.602E-01 V/m2
 * -c) 9.462E-01 V/m2
 * -d) 1.041E+00 V/m2
 * -e) 1.145E+00 V/m2

Click these links for the keys:

Key: J0
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.5 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.33 m (on axis) away from the loop's center?


 * -a) 1.353E+09 N/C2
 * -b) 1.488E+09 N/C2
 * +c) 1.637E+09 N/C2
 * -d) 1.801E+09 N/C2
 * -e) 1.981E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 5.569E+01 degrees
 * -b) 6.125E+01 degrees
 * +c) 6.738E+01 degrees
 * -d) 7.412E+01 degrees
 * -e) 8.153E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.2\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * +a) 1.606E+00 V/m2
 * -b) 1.767E+00 V/m2
 * -c) 1.943E+00 V/m2
 * -d) 2.138E+00 V/m2
 * -e) 2.351E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=2e$$?


 * -a) 3.876E-14 N
 * -b) 4.263E-14 N
 * -c) 4.690E-14 N
 * +d) 5.159E-14 N
 * -e) 5.675E-14 N

Click these links for the keys:

Key: J1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=6e$$?


 * -a) 5.243E+01 degrees
 * -b) 5.767E+01 degrees
 * +c) 6.343E+01 degrees
 * -d) 6.978E+01 degrees
 * -e) 7.676E+01 degrees

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 8.336E+09 N/C2
 * -b) 9.170E+09 N/C2
 * -c) 1.009E+10 N/C2
 * -d) 1.110E+10 N/C2
 * -e) 1.220E+10 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 5.243E-14 N
 * +b) 5.768E-14 N
 * -c) 6.344E-14 N
 * -d) 6.979E-14 N
 * -e) 7.677E-14 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.2\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.2\text{ m}$$.


 * -a) 3.228E+00 V/m2
 * -b) 3.551E+00 V/m2
 * -c) 3.906E+00 V/m2
 * -d) 4.297E+00 V/m2
 * +e) 4.727E+00 V/m2

Click these links for the keys:

Key: J2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 3.961E+01 degrees
 * -b) 4.357E+01 degrees
 * -c) 4.793E+01 degrees
 * -d) 5.272E+01 degrees
 * +e) 5.799E+01 degrees

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.8\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * -a) 1.258E+00 V/m2
 * -b) 1.384E+00 V/m2
 * -c) 1.522E+00 V/m2
 * +d) 1.674E+00 V/m2
 * -e) 1.842E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 4.171E-14 N
 * -b) 4.588E-14 N
 * +c) 5.047E-14 N
 * -d) 5.551E-14 N
 * -e) 6.107E-14 N

4) A ring is uniformly charged with a net charge of 6 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.4 m (on axis) away from the loop's center?


 * -a) 2.013E+09 N/C2
 * -b) 2.214E+09 N/C2
 * -c) 2.435E+09 N/C2
 * -d) 2.679E+09 N/C2
 * +e) 2.947E+09 N/C2

Click these links for the keys:

Key: K0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 5.569E+01 degrees
 * -b) 6.125E+01 degrees
 * +c) 6.738E+01 degrees
 * -d) 7.412E+01 degrees
 * -e) 8.153E+01 degrees

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 4.171E-14 N
 * -b) 4.588E-14 N
 * +c) 5.047E-14 N
 * -d) 5.551E-14 N
 * -e) 6.107E-14 N

3) A ring is uniformly charged with a net charge of 6 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.4 m (on axis) away from the loop's center?


 * -a) 2.013E+09 N/C2
 * -b) 2.214E+09 N/C2
 * -c) 2.435E+09 N/C2
 * -d) 2.679E+09 N/C2
 * +e) 2.947E+09 N/C2

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * -a) 7.820E-01 V/m2
 * +b) 8.602E-01 V/m2
 * -c) 9.462E-01 V/m2
 * -d) 1.041E+00 V/m2
 * -e) 1.145E+00 V/m2

Click these links for the keys:

Key: K1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 8.259E-15 N
 * -b) 9.085E-15 N
 * -c) 9.993E-15 N
 * -d) 1.099E-14 N
 * +e) 1.209E-14 N

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * -a) 8.253E-01 V/m2
 * -b) 9.079E-01 V/m2
 * +c) 9.987E-01 V/m2
 * -d) 1.099E+00 V/m2
 * -e) 1.208E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 6.125E+01 degrees
 * +b) 6.738E+01 degrees
 * -c) 7.412E+01 degrees
 * -d) 8.153E+01 degrees
 * -e) 8.968E+01 degrees

4) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.4 m (on axis) away from the loop's center?


 * -a) 7.119E+09 N/C2
 * -b) 7.831E+09 N/C2
 * +c) 8.614E+09 N/C2
 * -d) 9.476E+09 N/C2
 * -e) 1.042E+10 N/C2

Click these links for the keys:

Key: K2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 3.629E+01 degrees
 * -b) 3.992E+01 degrees
 * -c) 4.391E+01 degrees
 * -d) 4.830E+01 degrees
 * +e) 5.313E+01 degrees

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.2 m (on axis) away from the loop's center?


 * -a) 6.925E+09 N/C2
 * -b) 7.617E+09 N/C2
 * +c) 8.379E+09 N/C2
 * -d) 9.217E+09 N/C2
 * -e) 1.014E+10 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * -a) 5.014E-14 N
 * -b) 5.515E-14 N
 * -c) 6.067E-14 N
 * -d) 6.674E-14 N
 * +e) 7.341E-14 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=8.3\text{ m}$$ and the surface charge density is $$\sigma=5\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.3\text{ m}$$.


 * +a) 1.022E+00 V/m2
 * -b) 1.125E+00 V/m2
 * -c) 1.237E+00 V/m2
 * -d) 1.361E+00 V/m2
 * -e) 1.497E+00 V/m2

Click these links for the keys:

Key: L0
1) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 3.672E+09 N/C2
 * -b) 4.039E+09 N/C2
 * -c) 4.443E+09 N/C2
 * +d) 4.887E+09 N/C2
 * -e) 5.376E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * -a) 5.767E+01 degrees
 * +b) 6.343E+01 degrees
 * -c) 6.978E+01 degrees
 * -d) 7.676E+01 degrees
 * -e) 8.443E+01 degrees

3) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 8.471E+01 N/C
 * -b) 9.318E+01 N/C
 * -c) 1.025E+02 N/C
 * -d) 1.127E+02 N/C
 * -e) 1.240E+02 N/C

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.0\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.2\text{ m}$$.


 * -a) 8.933E+00 V/m2
 * -b) 9.826E+00 V/m2
 * +c) 1.081E+01 V/m2
 * -d) 1.189E+01 V/m2
 * -e) 1.308E+01 V/m2

Click these links for the keys:

Key: L1
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 9.412E+01 N/C
 * -b) 1.035E+02 N/C
 * -c) 1.139E+02 N/C
 * -d) 1.253E+02 N/C
 * -e) 1.378E+02 N/C

2) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * +a) 5.352E+09 N/C2
 * -b) 5.887E+09 N/C2
 * -c) 6.476E+09 N/C2
 * -d) 7.124E+09 N/C2
 * -e) 7.836E+09 N/C2

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * -a) 8.253E-01 V/m2
 * -b) 9.079E-01 V/m2
 * +c) 9.987E-01 V/m2
 * -d) 1.099E+00 V/m2
 * -e) 1.208E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 5.272E+01 degrees
 * +b) 5.799E+01 degrees
 * -c) 6.379E+01 degrees
 * -d) 7.017E+01 degrees
 * -e) 7.719E+01 degrees

Click these links for the keys:

Key: L2
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

2) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 9.412E+01 N/C
 * -b) 1.035E+02 N/C
 * -c) 1.139E+02 N/C
 * -d) 1.253E+02 N/C
 * -e) 1.378E+02 N/C

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=9.1\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=6.2\text{ m}$$.


 * -a) 4.961E-01 V/m2
 * -b) 5.457E-01 V/m2
 * -c) 6.002E-01 V/m2
 * -d) 6.603E-01 V/m2
 * +e) 7.263E-01 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 4.743E+01 degrees
 * -b) 5.217E+01 degrees
 * -c) 5.739E+01 degrees
 * -d) 6.313E+01 degrees
 * +e) 6.944E+01 degrees

Click these links for the keys:

Key: M0
1) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 1.202E+09 N/C2
 * -b) 1.322E+09 N/C2
 * -c) 1.454E+09 N/C2
 * -d) 1.599E+09 N/C2
 * +e) 1.759E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 5.272E+01 degrees
 * +b) 5.799E+01 degrees
 * -c) 6.379E+01 degrees
 * -d) 7.017E+01 degrees
 * -e) 7.719E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=9.1\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=6.2\text{ m}$$.


 * -a) 4.961E-01 V/m2
 * -b) 5.457E-01 V/m2
 * -c) 6.002E-01 V/m2
 * -d) 6.603E-01 V/m2
 * +e) 7.263E-01 V/m2

4) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 6.534E+01 N/C
 * -b) 7.187E+01 N/C
 * +c) 7.906E+01 N/C
 * -d) 8.696E+01 N/C
 * -e) 9.566E+01 N/C

Click these links for the keys:

Key: M1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 3.629E+01 degrees
 * -b) 3.992E+01 degrees
 * -c) 4.391E+01 degrees
 * -d) 4.830E+01 degrees
 * +e) 5.313E+01 degrees

2) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * -a) 9.546E+01 N/C
 * -b) 1.050E+02 N/C
 * -c) 1.155E+02 N/C
 * +d) 1.271E+02 N/C
 * -e) 1.398E+02 N/C

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.9\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.1\text{ m}$$.


 * -a) 8.253E-01 V/m2
 * -b) 9.079E-01 V/m2
 * +c) 9.987E-01 V/m2
 * -d) 1.099E+00 V/m2
 * -e) 1.208E+00 V/m2

4) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 1.202E+09 N/C2
 * -b) 1.322E+09 N/C2
 * -c) 1.454E+09 N/C2
 * -d) 1.599E+09 N/C2
 * +e) 1.759E+09 N/C2

Click these links for the keys:

Key: M2
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.9\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=4.3\text{ m}$$.


 * -a) 8.924E-01 V/m2
 * -b) 9.816E-01 V/m2
 * +c) 1.080E+00 V/m2
 * -d) 1.188E+00 V/m2
 * -e) 1.307E+00 V/m2

2) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * -a) 3.214E+01 N/C
 * -b) 3.536E+01 N/C
 * -c) 3.889E+01 N/C
 * -d) 4.278E+01 N/C
 * +e) 4.706E+01 N/C

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * -a) 3.719E+01 degrees
 * -b) 4.091E+01 degrees
 * +c) 4.500E+01 degrees
 * -d) 4.950E+01 degrees
 * -e) 5.445E+01 degrees

4) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * +a) 4.788E+09 N/C2
 * -b) 5.267E+09 N/C2
 * -c) 5.793E+09 N/C2
 * -d) 6.373E+09 N/C2
 * -e) 7.010E+09 N/C2

Click these links for the keys:

Key: N0
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 1.694E+02 N/C
 * -b) 1.864E+02 N/C
 * -c) 2.050E+02 N/C
 * -d) 2.255E+02 N/C
 * -e) 2.480E+02 N/C

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 5.569E+01 degrees
 * -b) 6.125E+01 degrees
 * +c) 6.738E+01 degrees
 * -d) 7.412E+01 degrees
 * -e) 8.153E+01 degrees

3) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.35 m (on axis) away from the loop's center?


 * -a) 4.142E+09 N/C2
 * -b) 4.556E+09 N/C2
 * +c) 5.012E+09 N/C2
 * -d) 5.513E+09 N/C2
 * -e) 6.064E+09 N/C2

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.96 m if a=0.95 m, b=1.8 m.  The total charge on the rod is 7 nC.


 * -a) 3.385E+00 V/m2
 * -b) 3.724E+00 V/m2
 * -c) 4.096E+00 V/m2
 * +d) 4.506E+00 V/m2
 * -e) 4.957E+00 V/m2

Click these links for the keys:

Key: N1
1) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 6.534E+01 N/C
 * -b) 7.187E+01 N/C
 * +c) 7.906E+01 N/C
 * -d) 8.696E+01 N/C
 * -e) 9.566E+01 N/C

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.3 m.  Evaluate $$f(x,y)$$ at x=0.96 m if a=0.63 m, b=1.4 m.  The total charge on the rod is 3 nC.


 * -a) 3.719E+00 V/m2
 * +b) 4.091E+00 V/m2
 * -c) 4.500E+00 V/m2
 * -d) 4.950E+00 V/m2
 * -e) 5.445E+00 V/m2

3) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * +a) 5.352E+09 N/C2
 * -b) 5.887E+09 N/C2
 * -c) 6.476E+09 N/C2
 * -d) 7.124E+09 N/C2
 * -e) 7.836E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.377E+01 degrees
 * -b) 5.914E+01 degrees
 * -c) 6.506E+01 degrees
 * +d) 7.157E+01 degrees
 * -e) 7.872E+01 degrees

Click these links for the keys:

Key: N2
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 9.412E+01 N/C
 * -b) 1.035E+02 N/C
 * -c) 1.139E+02 N/C
 * -d) 1.253E+02 N/C
 * -e) 1.378E+02 N/C

2) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.4 m (on axis) away from the loop's center?


 * -a) 7.119E+09 N/C2
 * -b) 7.831E+09 N/C2
 * +c) 8.614E+09 N/C2
 * -d) 9.476E+09 N/C2
 * -e) 1.042E+10 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.914E+01 degrees
 * -b) 6.506E+01 degrees
 * +c) 7.157E+01 degrees
 * -d) 7.872E+01 degrees
 * -e) 8.659E+01 degrees

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.54 m if a=1.0 m, b=2.0 m.  The total charge on the rod is 3 nC.


 * -a) 1.665E+00 V/m2
 * -b) 1.831E+00 V/m2
 * -c) 2.014E+00 V/m2
 * +d) 2.216E+00 V/m2
 * -e) 2.437E+00 V/m2

Click these links for the keys:

Key: O0
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.65 m if a=0.85 m, b=1.8 m.  The total charge on the rod is 5 nC.


 * -a) 3.959E+00 V/m2
 * +b) 4.355E+00 V/m2
 * -c) 4.790E+00 V/m2
 * -d) 5.269E+00 V/m2
 * -e) 5.796E+00 V/m2

2) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 3.500E+01 N/C
 * -b) 3.850E+01 N/C
 * +c) 4.235E+01 N/C
 * -d) 4.659E+01 N/C
 * -e) 5.125E+01 N/C

3) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 3.672E+09 N/C2
 * -b) 4.039E+09 N/C2
 * -c) 4.443E+09 N/C2
 * +d) 4.887E+09 N/C2
 * -e) 5.376E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * -a) 4.766E+01 degrees
 * -b) 5.243E+01 degrees
 * -c) 5.767E+01 degrees
 * +d) 6.343E+01 degrees
 * -e) 6.978E+01 degrees

Click these links for the keys:

Key: O1
1) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 7.701E+01 N/C
 * +b) 8.471E+01 N/C
 * -c) 9.318E+01 N/C
 * -d) 1.025E+02 N/C
 * -e) 1.127E+02 N/C

2) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.7 m, b=1.8 m.  The total charge on the rod is 9 nC.


 * +a) 6.897E+00 V/m2
 * -b) 7.587E+00 V/m2
 * -c) 8.345E+00 V/m2
 * -d) 9.180E+00 V/m2
 * -e) 1.010E+01 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 3.629E+01 degrees
 * -b) 3.992E+01 degrees
 * -c) 4.391E+01 degrees
 * -d) 4.830E+01 degrees
 * +e) 5.313E+01 degrees

Click these links for the keys:

Key: O2
1) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * -a) 4.492E+01 N/C
 * +b) 4.941E+01 N/C
 * -c) 5.435E+01 N/C
 * -d) 5.979E+01 N/C
 * -e) 6.577E+01 N/C

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.34 m (on axis) away from the loop's center?


 * -a) 3.672E+09 N/C2
 * -b) 4.039E+09 N/C2
 * -c) 4.443E+09 N/C2
 * +d) 4.887E+09 N/C2
 * -e) 5.376E+09 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * -a) 4.766E+01 degrees
 * -b) 5.243E+01 degrees
 * -c) 5.767E+01 degrees
 * +d) 6.343E+01 degrees
 * -e) 6.978E+01 degrees

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.1 m, b=1.4 m.  The total charge on the rod is 5 nC.


 * +a) 4.602E+00 V/m2
 * -b) 5.062E+00 V/m2
 * -c) 5.568E+00 V/m2
 * -d) 6.125E+00 V/m2
 * -e) 6.738E+00 V/m2

Click these links for the keys:

Key: P0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.5\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.6\text{ m}$$.


 * -a) 7.820E-01 V/m2
 * +b) 8.602E-01 V/m2
 * -c) 9.462E-01 V/m2
 * -d) 1.041E+00 V/m2
 * -e) 1.145E+00 V/m2

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.35 m (on axis) away from the loop's center?


 * -a) 4.142E+09 N/C2
 * -b) 4.556E+09 N/C2
 * +c) 5.012E+09 N/C2
 * -d) 5.513E+09 N/C2
 * -e) 6.064E+09 N/C2

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 4.821E+01 N/C
 * -b) 5.303E+01 N/C
 * -c) 5.834E+01 N/C
 * -d) 6.417E+01 N/C
 * +e) 7.059E+01 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * +a) 6.343E+01 degrees
 * -b) 6.978E+01 degrees
 * -c) 7.676E+01 degrees
 * -d) 8.443E+01 degrees
 * -e) 9.288E+01 degrees

Click these links for the keys:

Key: P1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * -a) 5.767E+01 degrees
 * +b) 6.343E+01 degrees
 * -c) 6.978E+01 degrees
 * -d) 7.676E+01 degrees
 * -e) 8.443E+01 degrees

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 8.336E+09 N/C2
 * -b) 9.170E+09 N/C2
 * -c) 1.009E+10 N/C2
 * -d) 1.110E+10 N/C2
 * -e) 1.220E+10 N/C2

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.83\text{ m}$$.


 * +a) 2.898E+01 V/m2
 * -b) 3.188E+01 V/m2
 * -c) 3.507E+01 V/m2
 * -d) 3.857E+01 V/m2
 * -e) 4.243E+01 V/m2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * -a) 3.214E+01 N/C
 * -b) 3.536E+01 N/C
 * -c) 3.889E+01 N/C
 * -d) 4.278E+01 N/C
 * +e) 4.706E+01 N/C

Click these links for the keys:

Key: P2
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=6.9\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=4.3\text{ m}$$.


 * -a) 8.924E-01 V/m2
 * -b) 9.816E-01 V/m2
 * +c) 1.080E+00 V/m2
 * -d) 1.188E+00 V/m2
 * -e) 1.307E+00 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=6e$$?


 * -a) 5.243E+01 degrees
 * -b) 5.767E+01 degrees
 * +c) 6.343E+01 degrees
 * -d) 6.978E+01 degrees
 * -e) 7.676E+01 degrees

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * -a) 9.546E+01 N/C
 * -b) 1.050E+02 N/C
 * -c) 1.155E+02 N/C
 * +d) 1.271E+02 N/C
 * -e) 1.398E+02 N/C

4) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * +a) 5.352E+09 N/C2
 * -b) 5.887E+09 N/C2
 * -c) 6.476E+09 N/C2
 * -d) 7.124E+09 N/C2
 * -e) 7.836E+09 N/C2

Click these links for the keys:

Key: Q0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * -a) 5.014E-14 N
 * -b) 5.515E-14 N
 * -c) 6.067E-14 N
 * -d) 6.674E-14 N
 * +e) 7.341E-14 N

2) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 2.571E+01 N/C
 * -b) 2.828E+01 N/C
 * -c) 3.111E+01 N/C
 * -d) 3.422E+01 N/C
 * +e) 3.765E+01 N/C

3) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 5.402E+09 N/C2
 * -b) 5.943E+09 N/C2
 * -c) 6.537E+09 N/C2
 * -d) 7.191E+09 N/C2
 * -e) 7.910E+09 N/C2

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.61 m, b=1.7 m.  The total charge on the rod is 8 nC.


 * -a) 5.995E+00 V/m2
 * -b) 6.595E+00 V/m2
 * +c) 7.254E+00 V/m2
 * -d) 7.980E+00 V/m2
 * -e) 8.778E+00 V/m2

Click these links for the keys:

Key: Q1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.7 m.  Evaluate $$f(x,y)$$ at x=0.76 m if a=1.1 m, b=1.6 m.  The total charge on the rod is 8 nC.


 * -a) 5.267E+00 V/m2
 * -b) 5.794E+00 V/m2
 * -c) 6.374E+00 V/m2
 * +d) 7.011E+00 V/m2
 * -e) 7.712E+00 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=2e$$?


 * -a) 3.426E-15 N
 * -b) 3.768E-15 N
 * -c) 4.145E-15 N
 * -d) 4.560E-15 N
 * +e) 5.015E-15 N

3) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * -a) 3.339E+09 N/C2
 * -b) 3.673E+09 N/C2
 * -c) 4.041E+09 N/C2
 * +d) 4.445E+09 N/C2
 * -e) 4.889E+09 N/C2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 7.701E+01 N/C
 * +b) 8.471E+01 N/C
 * -c) 9.318E+01 N/C
 * -d) 1.025E+02 N/C
 * -e) 1.127E+02 N/C

Click these links for the keys:

Key: Q2
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.7 m.  Evaluate $$f(x,y)$$ at x=0.52 m if a=0.88 m, b=1.3 m.  The total charge on the rod is 6 nC.


 * -a) 6.804E+00 V/m2
 * +b) 7.485E+00 V/m2
 * -c) 8.233E+00 V/m2
 * -d) 9.056E+00 V/m2
 * -e) 9.962E+00 V/m2

2) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 7.701E+01 N/C
 * +b) 8.471E+01 N/C
 * -c) 9.318E+01 N/C
 * -d) 1.025E+02 N/C
 * -e) 1.127E+02 N/C

3) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 3.159E+09 N/C2
 * -b) 3.475E+09 N/C2
 * -c) 3.823E+09 N/C2
 * -d) 4.205E+09 N/C2
 * -e) 4.626E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 4.171E-14 N
 * -b) 4.588E-14 N
 * +c) 5.047E-14 N
 * -d) 5.551E-14 N
 * -e) 6.107E-14 N

Click these links for the keys:

Key: R0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * -a) 3.719E+01 degrees
 * -b) 4.091E+01 degrees
 * +c) 4.500E+01 degrees
 * -d) 4.950E+01 degrees
 * -e) 5.445E+01 degrees

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.0\text{ m}$$ and the surface charge density is $$\sigma=8\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * -a) 9.459E+00 V/m2
 * +b) 1.040E+01 V/m2
 * -c) 1.145E+01 V/m2
 * -d) 1.259E+01 V/m2
 * -e) 1.385E+01 V/m2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.7 m, b=1.8 m.  The total charge on the rod is 9 nC.


 * +a) 6.897E+00 V/m2
 * -b) 7.587E+00 V/m2
 * -c) 8.345E+00 V/m2
 * -d) 9.180E+00 V/m2
 * -e) 1.010E+01 V/m2

4) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 8.336E+09 N/C2
 * -b) 9.170E+09 N/C2
 * -c) 1.009E+10 N/C2
 * -d) 1.110E+10 N/C2
 * -e) 1.220E+10 N/C2

Click these links for the keys:

Key: R1
1) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * +a) 5.352E+09 N/C2
 * -b) 5.887E+09 N/C2
 * -c) 6.476E+09 N/C2
 * -d) 7.124E+09 N/C2
 * -e) 7.836E+09 N/C2

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=8.7\text{ m}$$ and the surface charge density is $$\sigma=7\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=5.8\text{ m}$$.


 * -a) 3.722E-01 V/m2
 * -b) 4.094E-01 V/m2
 * -c) 4.504E-01 V/m2
 * +d) 4.954E-01 V/m2
 * -e) 5.450E-01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * -a) 3.719E+01 degrees
 * -b) 4.091E+01 degrees
 * +c) 4.500E+01 degrees
 * -d) 4.950E+01 degrees
 * -e) 5.445E+01 degrees

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.3 m.  Evaluate $$f(x,y)$$ at x=0.96 m if a=0.63 m, b=1.4 m.  The total charge on the rod is 3 nC.


 * -a) 3.719E+00 V/m2
 * +b) 4.091E+00 V/m2
 * -c) 4.500E+00 V/m2
 * -d) 4.950E+00 V/m2
 * -e) 5.445E+00 V/m2

Click these links for the keys:

Key: R2
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 5.062E+01 degrees
 * -b) 5.569E+01 degrees
 * -c) 6.125E+01 degrees
 * +d) 6.738E+01 degrees
 * -e) 7.412E+01 degrees

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.65 m if a=0.85 m, b=1.8 m.  The total charge on the rod is 5 nC.


 * -a) 3.959E+00 V/m2
 * +b) 4.355E+00 V/m2
 * -c) 4.790E+00 V/m2
 * -d) 5.269E+00 V/m2
 * -e) 5.796E+00 V/m2

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.8\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.9\text{ m}$$.


 * -a) 4.295E+00 V/m2
 * +b) 4.724E+00 V/m2
 * -c) 5.196E+00 V/m2
 * -d) 5.716E+00 V/m2
 * -e) 6.288E+00 V/m2

Click these links for the keys:

Key: S0
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=7.2\text{ m}$$ and the surface charge density is $$\sigma=3\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=3.6\text{ m}$$.


 * +a) 1.606E+00 V/m2
 * -b) 1.767E+00 V/m2
 * -c) 1.943E+00 V/m2
 * -d) 2.138E+00 V/m2
 * -e) 2.351E+00 V/m2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.4 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.69 m, b=2.2 m.  The total charge on the rod is 6 nC.


 * -a) 3.161E+00 V/m2
 * -b) 3.477E+00 V/m2
 * -c) 3.825E+00 V/m2
 * -d) 4.208E+00 V/m2
 * +e) 4.628E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * -a) 5.767E+01 degrees
 * +b) 6.343E+01 degrees
 * -c) 6.978E+01 degrees
 * -d) 7.676E+01 degrees
 * -e) 8.443E+01 degrees

4) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.2 m (on axis) away from the loop's center?


 * -a) 6.925E+09 N/C2
 * -b) 7.617E+09 N/C2
 * +c) 8.379E+09 N/C2
 * -d) 9.217E+09 N/C2
 * -e) 1.014E+10 N/C2

Click these links for the keys:

Key: S1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.96 m if a=0.95 m, b=1.8 m.  The total charge on the rod is 7 nC.


 * -a) 3.385E+00 V/m2
 * -b) 3.724E+00 V/m2
 * -c) 4.096E+00 V/m2
 * +d) 4.506E+00 V/m2
 * -e) 4.957E+00 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 3.629E+01 degrees
 * -b) 3.992E+01 degrees
 * -c) 4.391E+01 degrees
 * -d) 4.830E+01 degrees
 * +e) 5.313E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.0\text{ m}$$ and the surface charge density is $$\sigma=8\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * -a) 9.459E+00 V/m2
 * +b) 1.040E+01 V/m2
 * -c) 1.145E+01 V/m2
 * -d) 1.259E+01 V/m2
 * -e) 1.385E+01 V/m2

4) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * -a) 5.581E+09 N/C2
 * -b) 6.139E+09 N/C2
 * +c) 6.753E+09 N/C2
 * -d) 7.428E+09 N/C2
 * -e) 8.171E+09 N/C2

Click these links for the keys:

Key: S2
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.3\text{ m}$$ and the surface charge density is $$\sigma=4\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * -a) 6.877E+00 V/m2
 * -b) 7.565E+00 V/m2
 * +c) 8.321E+00 V/m2
 * -d) 9.153E+00 V/m2
 * -e) 1.007E+01 V/m2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.377E+01 degrees
 * -b) 5.914E+01 degrees
 * -c) 6.506E+01 degrees
 * +d) 7.157E+01 degrees
 * -e) 7.872E+01 degrees

3) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.4 m (on axis) away from the loop's center?


 * -a) 7.119E+09 N/C2
 * -b) 7.831E+09 N/C2
 * +c) 8.614E+09 N/C2
 * -d) 9.476E+09 N/C2
 * -e) 1.042E+10 N/C2

4) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.62 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * -a) 6.311E+00 V/m2
 * -b) 6.943E+00 V/m2
 * +c) 7.637E+00 V/m2
 * -d) 8.401E+00 V/m2
 * -e) 9.241E+00 V/m2

Click these links for the keys:

Key: T0
1) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * +a) 4.788E+09 N/C2
 * -b) 5.267E+09 N/C2
 * -c) 5.793E+09 N/C2
 * -d) 6.373E+09 N/C2
 * -e) 7.010E+09 N/C2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.62 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * -a) 6.311E+00 V/m2
 * -b) 6.943E+00 V/m2
 * +c) 7.637E+00 V/m2
 * -d) 8.401E+00 V/m2
 * -e) 9.241E+00 V/m2

3) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 9.412E+01 N/C
 * -b) 1.035E+02 N/C
 * -c) 1.139E+02 N/C
 * -d) 1.253E+02 N/C
 * -e) 1.378E+02 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 3.961E+01 degrees
 * -b) 4.357E+01 degrees
 * -c) 4.793E+01 degrees
 * -d) 5.272E+01 degrees
 * +e) 5.799E+01 degrees

Click these links for the keys:

Key: T1
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.7 m, b=1.8 m.  The total charge on the rod is 9 nC.


 * +a) 6.897E+00 V/m2
 * -b) 7.587E+00 V/m2
 * -c) 8.345E+00 V/m2
 * -d) 9.180E+00 V/m2
 * -e) 1.010E+01 V/m2

2) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 2.357E+01 N/C
 * -b) 2.593E+01 N/C
 * -c) 2.852E+01 N/C
 * +d) 3.137E+01 N/C
 * -e) 3.451E+01 N/C

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.914E+01 degrees
 * -b) 6.506E+01 degrees
 * +c) 7.157E+01 degrees
 * -d) 7.872E+01 degrees
 * -e) 8.659E+01 degrees

4) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.73 m (on axis) away from the loop's center?


 * -a) 7.415E+09 N/C2
 * -b) 8.156E+09 N/C2
 * -c) 8.972E+09 N/C2
 * -d) 9.869E+09 N/C2
 * +e) 1.086E+10 N/C2

Click these links for the keys:

Key: T2
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 9.412E+01 N/C
 * -b) 1.035E+02 N/C
 * -c) 1.139E+02 N/C
 * -d) 1.253E+02 N/C
 * -e) 1.378E+02 N/C

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.9 m.  Evaluate $$f(x,y)$$ at x=0.54 m if a=1.0 m, b=2.0 m.  The total charge on the rod is 3 nC.


 * -a) 1.665E+00 V/m2
 * -b) 1.831E+00 V/m2
 * -c) 2.014E+00 V/m2
 * +d) 2.216E+00 V/m2
 * -e) 2.437E+00 V/m2

3) A ring is uniformly charged with a net charge of 3 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.1 m (on axis) away from the loop's center?


 * +a) 3.159E+09 N/C2
 * -b) 3.475E+09 N/C2
 * -c) 3.823E+09 N/C2
 * -d) 4.205E+09 N/C2
 * -e) 4.626E+09 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.377E+01 degrees
 * -b) 5.914E+01 degrees
 * -c) 6.506E+01 degrees
 * +d) 7.157E+01 degrees
 * -e) 7.872E+01 degrees

Click these links for the keys:

Key: U0
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.5 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.33 m (on axis) away from the loop's center?


 * -a) 1.353E+09 N/C2
 * -b) 1.488E+09 N/C2
 * +c) 1.637E+09 N/C2
 * -d) 1.801E+09 N/C2
 * -e) 1.981E+09 N/C2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.5 m if a=0.67 m, b=2.4 m.  The total charge on the rod is 9 nC.


 * -a) 5.465E+00 V/m2
 * -b) 6.012E+00 V/m2
 * -c) 6.613E+00 V/m2
 * +d) 7.274E+00 V/m2
 * -e) 8.002E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 5.062E+01 degrees
 * -b) 5.569E+01 degrees
 * -c) 6.125E+01 degrees
 * +d) 6.738E+01 degrees
 * -e) 7.412E+01 degrees

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 4.171E-14 N
 * -b) 4.588E-14 N
 * +c) 5.047E-14 N
 * -d) 5.551E-14 N
 * -e) 6.107E-14 N

Click these links for the keys:

Key: U1
1) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.5 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.33 m (on axis) away from the loop's center?


 * -a) 1.353E+09 N/C2
 * -b) 1.488E+09 N/C2
 * +c) 1.637E+09 N/C2
 * -d) 1.801E+09 N/C2
 * -e) 1.981E+09 N/C2

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 5.569E+01 degrees
 * -b) 6.125E+01 degrees
 * +c) 6.738E+01 degrees
 * -d) 7.412E+01 degrees
 * -e) 8.153E+01 degrees

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.1 m if a=0.62 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * -a) 6.311E+00 V/m2
 * -b) 6.943E+00 V/m2
 * +c) 7.637E+00 V/m2
 * -d) 8.401E+00 V/m2
 * -e) 9.241E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 8.259E-15 N
 * -b) 9.085E-15 N
 * -c) 9.993E-15 N
 * -d) 1.099E-14 N
 * +e) 1.209E-14 N

Click these links for the keys:

Key: U2
1) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.1 m, b=1.4 m.  The total charge on the rod is 5 nC.


 * +a) 4.602E+00 V/m2
 * -b) 5.062E+00 V/m2
 * -c) 5.568E+00 V/m2
 * -d) 6.125E+00 V/m2
 * -e) 6.738E+00 V/m2

2) A ring is uniformly charged with a net charge of 7 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.2 m (on axis) away from the loop's center?


 * -a) 6.925E+09 N/C2
 * -b) 7.617E+09 N/C2
 * +c) 8.379E+09 N/C2
 * -d) 9.217E+09 N/C2
 * -e) 1.014E+10 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.377E+01 degrees
 * -b) 5.914E+01 degrees
 * -c) 6.506E+01 degrees
 * +d) 7.157E+01 degrees
 * -e) 7.872E+01 degrees

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 5.243E-14 N
 * +b) 5.768E-14 N
 * -c) 6.344E-14 N
 * -d) 6.979E-14 N
 * -e) 7.677E-14 N

Click these links for the keys:

Key: V0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 5.569E+01 degrees
 * -b) 6.125E+01 degrees
 * +c) 6.738E+01 degrees
 * -d) 7.412E+01 degrees
 * -e) 8.153E+01 degrees

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.65 m if a=0.85 m, b=1.8 m.  The total charge on the rod is 5 nC.


 * -a) 3.959E+00 V/m2
 * +b) 4.355E+00 V/m2
 * -c) 4.790E+00 V/m2
 * -d) 5.269E+00 V/m2
 * -e) 5.796E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * -a) 8.613E-15 N
 * -b) 9.474E-15 N
 * -c) 1.042E-14 N
 * +d) 1.146E-14 N
 * -e) 1.261E-14 N

4) A large thin isolated square plate has an area of 9 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 2.357E+01 N/C
 * -b) 2.593E+01 N/C
 * -c) 2.852E+01 N/C
 * +d) 3.137E+01 N/C
 * -e) 3.451E+01 N/C

Click these links for the keys:

Key: V1
1) A large thin isolated square plate has an area of 8 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 3.500E+01 N/C
 * -b) 3.850E+01 N/C
 * +c) 4.235E+01 N/C
 * -d) 4.659E+01 N/C
 * -e) 5.125E+01 N/C

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.3 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.82 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * -a) 8.690E+00 V/m2
 * -b) 9.559E+00 V/m2
 * +c) 1.051E+01 V/m2
 * -d) 1.157E+01 V/m2
 * -e) 1.272E+01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 1.473E-14 N
 * -b) 1.620E-14 N
 * -c) 1.782E-14 N
 * -d) 1.960E-14 N
 * +e) 2.156E-14 N

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 6.125E+01 degrees
 * +b) 6.738E+01 degrees
 * -c) 7.412E+01 degrees
 * -d) 8.153E+01 degrees
 * -e) 8.968E+01 degrees

Click these links for the keys:

Key: V2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 4.743E+01 degrees
 * -b) 5.217E+01 degrees
 * -c) 5.739E+01 degrees
 * -d) 6.313E+01 degrees
 * +e) 6.944E+01 degrees

2) A large thin isolated square plate has an area of 5 m2. It is uniformly charged with 8 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * -a) 6.171E+01 N/C
 * -b) 6.788E+01 N/C
 * -c) 7.467E+01 N/C
 * -d) 8.214E+01 N/C
 * +e) 9.035E+01 N/C

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.2 m.  Evaluate $$f(x,y)$$ at x=0.73 m if a=0.52 m, b=1.6 m.  The total charge on the rod is 7 nC.


 * -a) 9.655E+00 V/m2
 * -b) 1.062E+01 V/m2
 * -c) 1.168E+01 V/m2
 * +d) 1.285E+01 V/m2
 * -e) 1.414E+01 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 5.243E-14 N
 * +b) 5.768E-14 N
 * -c) 6.344E-14 N
 * -d) 6.979E-14 N
 * -e) 7.677E-14 N

Click these links for the keys:

Key: W0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-7e$$, and $$q_3=3e$$?


 * -a) 4.743E+01 degrees
 * -b) 5.217E+01 degrees
 * -c) 5.739E+01 degrees
 * -d) 6.313E+01 degrees
 * +e) 6.944E+01 degrees

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.5 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.1 m, b=1.4 m.  The total charge on the rod is 5 nC.


 * +a) 4.602E+00 V/m2
 * -b) 5.062E+00 V/m2
 * -c) 5.568E+00 V/m2
 * -d) 6.125E+00 V/m2
 * -e) 6.738E+00 V/m2

3) A ring is uniformly charged with a net charge of 9 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.73 m (on axis) away from the loop's center?


 * -a) 7.415E+09 N/C2
 * -b) 8.156E+09 N/C2
 * -c) 8.972E+09 N/C2
 * -d) 9.869E+09 N/C2
 * +e) 1.086E+10 N/C2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 5.243E-14 N
 * +b) 5.768E-14 N
 * -c) 6.344E-14 N
 * -d) 6.979E-14 N
 * -e) 7.677E-14 N

Click these links for the keys:

Key: W1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 9.958E-15 N
 * -b) 1.095E-14 N
 * -c) 1.205E-14 N
 * -d) 1.325E-14 N
 * +e) 1.458E-14 N

2) A ring is uniformly charged with a net charge of 5 nC. The radius of the ring is R=1.9 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * +a) 4.788E+09 N/C2
 * -b) 5.267E+09 N/C2
 * -c) 5.793E+09 N/C2
 * -d) 6.373E+09 N/C2
 * -e) 7.010E+09 N/C2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=0.5 m if a=0.67 m, b=2.4 m.  The total charge on the rod is 9 nC.


 * -a) 5.465E+00 V/m2
 * -b) 6.012E+00 V/m2
 * -c) 6.613E+00 V/m2
 * +d) 7.274E+00 V/m2
 * -e) 8.002E+00 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=1e$$, $$q_2=-8e$$, and $$q_3=3e$$?


 * -a) 3.629E+01 degrees
 * -b) 3.992E+01 degrees
 * -c) 4.391E+01 degrees
 * -d) 4.830E+01 degrees
 * +e) 5.313E+01 degrees

Click these links for the keys:

Key: W2
1) A ring is uniformly charged with a net charge of 8 nC. The radius of the ring is R=1.7 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=0.32 m (on axis) away from the loop's center?


 * -a) 3.339E+09 N/C2
 * -b) 3.673E+09 N/C2
 * -c) 4.041E+09 N/C2
 * +d) 4.445E+09 N/C2
 * -e) 4.889E+09 N/C2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.8 m.  Evaluate $$f(x,y)$$ at x=1.0 m if a=1.0 m, b=1.8 m.  The total charge on the rod is 6 nC.


 * -a) 3.610E+00 V/m2
 * +b) 3.971E+00 V/m2
 * -c) 4.368E+00 V/m2
 * -d) 4.804E+00 V/m2
 * -e) 5.285E+00 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 5.914E+01 degrees
 * -b) 6.506E+01 degrees
 * +c) 7.157E+01 degrees
 * -d) 7.872E+01 degrees
 * -e) 8.659E+01 degrees

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=5e$$?


 * -a) 8.259E-15 N
 * -b) 9.085E-15 N
 * -c) 9.993E-15 N
 * -d) 1.099E-14 N
 * +e) 1.209E-14 N

Click these links for the keys:

Key: X0
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=4e$$?


 * -a) 9.750E-15 N
 * -b) 1.072E-14 N
 * -c) 1.180E-14 N
 * -d) 1.298E-14 N
 * +e) 1.427E-14 N

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=4.3\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.4\text{ m}$$.


 * +a) 5.647E+00 V/m2
 * -b) 6.212E+00 V/m2
 * -c) 6.833E+00 V/m2
 * -d) 7.517E+00 V/m2
 * -e) 8.268E+00 V/m2

3) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 8.471E+01 N/C
 * -b) 9.318E+01 N/C
 * -c) 1.025E+02 N/C
 * -d) 1.127E+02 N/C
 * -e) 1.240E+02 N/C

4) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

Click these links for the keys:

Key: X1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=1e$$, $$q_2=-7e$$, and $$q_3=2e$$?


 * -a) 3.391E-14 N
 * -b) 3.731E-14 N
 * -c) 4.104E-14 N
 * +d) 4.514E-14 N
 * -e) 4.965E-14 N

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.2\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.2\text{ m}$$.


 * -a) 3.228E+00 V/m2
 * -b) 3.551E+00 V/m2
 * -c) 3.906E+00 V/m2
 * -d) 4.297E+00 V/m2
 * +e) 4.727E+00 V/m2

3) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * -a) 9.546E+01 N/C
 * -b) 1.050E+02 N/C
 * -c) 1.155E+02 N/C
 * +d) 1.271E+02 N/C
 * -e) 1.398E+02 N/C

4) A ring is uniformly charged with a net charge of 4 nC. The radius of the ring is R=1.6 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.0 m (on axis) away from the loop's center?


 * +a) 5.352E+09 N/C2
 * -b) 5.887E+09 N/C2
 * -c) 6.476E+09 N/C2
 * -d) 7.124E+09 N/C2
 * -e) 7.836E+09 N/C2

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Key: X2
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.83\text{ m}$$.


 * +a) 2.898E+01 V/m2
 * -b) 3.188E+01 V/m2
 * -c) 3.507E+01 V/m2
 * -d) 3.857E+01 V/m2
 * -e) 4.243E+01 V/m2

2) A ring is uniformly charged with a net charge of 2 nC. The radius of the ring is R=1.8 m, with its center at the origin and oriented normal to the z axis as shown. what is the magnitude of the electric field at a distance z=1.3 m (on axis) away from the loop's center?


 * -a) 1.764E+09 N/C2
 * -b) 1.941E+09 N/C2
 * +c) 2.135E+09 N/C2
 * -d) 2.348E+09 N/C2
 * -e) 2.583E+09 N/C2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * -a) 2.544E-14 N
 * -b) 2.798E-14 N
 * -c) 3.078E-14 N
 * +d) 3.385E-14 N
 * -e) 3.724E-14 N

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * -a) 7.000E+01 N/C
 * -b) 7.701E+01 N/C
 * +c) 8.471E+01 N/C
 * -d) 9.318E+01 N/C
 * -e) 1.025E+02 N/C

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Key: Y0
1) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 9.412E+01 N/C
 * -b) 1.035E+02 N/C
 * -c) 1.139E+02 N/C
 * -d) 1.253E+02 N/C
 * -e) 1.378E+02 N/C

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.3\text{ m}$$ and the surface charge density is $$\sigma=4\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * -a) 6.877E+00 V/m2
 * -b) 7.565E+00 V/m2
 * +c) 8.321E+00 V/m2
 * -d) 9.153E+00 V/m2
 * -e) 1.007E+01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=4e$$?


 * -a) 5.243E+01 degrees
 * -b) 5.767E+01 degrees
 * +c) 6.343E+01 degrees
 * -d) 6.978E+01 degrees
 * -e) 7.676E+01 degrees

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=2e$$, $$q_2=-8e$$, and $$q_3=4e$$?


 * -a) 8.613E-15 N
 * -b) 9.474E-15 N
 * -c) 1.042E-14 N
 * +d) 1.146E-14 N
 * -e) 1.261E-14 N

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Key: Y1
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * -a) 1.028E-14 N
 * -b) 1.130E-14 N
 * -c) 1.244E-14 N
 * -d) 1.368E-14 N
 * +e) 1.505E-14 N

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=3e$$, $$q_2=-8e$$, and $$q_3=6e$$?


 * -a) 5.243E+01 degrees
 * -b) 5.767E+01 degrees
 * +c) 6.343E+01 degrees
 * -d) 6.978E+01 degrees
 * -e) 7.676E+01 degrees

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.2\text{ m}$$ and the surface charge density is $$\sigma=2\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.2\text{ m}$$.


 * -a) 3.228E+00 V/m2
 * -b) 3.551E+00 V/m2
 * -c) 3.906E+00 V/m2
 * -d) 4.297E+00 V/m2
 * +e) 4.727E+00 V/m2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * +a) 5.647E+01 N/C
 * -b) 6.212E+01 N/C
 * -c) 6.833E+01 N/C
 * -d) 7.516E+01 N/C
 * -e) 8.268E+01 N/C

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Key: Y2
1) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?


 * -a) 3.214E+01 N/C
 * -b) 3.536E+01 N/C
 * -c) 3.889E+01 N/C
 * -d) 4.278E+01 N/C
 * +e) 4.706E+01 N/C

2) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=2\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-9e$$, and $$q_3=6e$$?


 * -a) 1.308E-13 N
 * -b) 1.439E-13 N
 * -c) 1.583E-13 N
 * +d) 1.741E-13 N
 * -e) 1.915E-13 N

3) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=3.0\text{ m}$$ and the surface charge density is $$\sigma=8\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=2.0\text{ m}$$.


 * -a) 9.459E+00 V/m2
 * +b) 1.040E+01 V/m2
 * -c) 1.145E+01 V/m2
 * -d) 1.259E+01 V/m2
 * -e) 1.385E+01 V/m2

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$.what angle does the force on $$q_2$$ make above the $$-x$$ axis if $$q_1=2e$$, $$q_2=-9e$$, and $$q_3=5e$$?


 * -a) 5.272E+01 degrees
 * +b) 5.799E+01 degrees
 * -c) 6.379E+01 degrees
 * -d) 7.017E+01 degrees
 * -e) 7.719E+01 degrees

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Key: Z0
1) A large thin isolated square plate has an area of 4 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * -a) 9.546E+01 N/C
 * -b) 1.050E+02 N/C
 * -c) 1.155E+02 N/C
 * +d) 1.271E+02 N/C
 * -e) 1.398E+02 N/C

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.3 m.  Evaluate $$f(x,y)$$ at x=0.83 m if a=0.82 m, b=1.3 m.  The total charge on the rod is 7 nC.


 * -a) 8.690E+00 V/m2
 * -b) 9.559E+00 V/m2
 * +c) 1.051E+01 V/m2
 * -d) 1.157E+01 V/m2
 * -e) 1.272E+01 V/m2

3) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=5e$$?


 * -a) 9.958E-15 N
 * -b) 1.095E-14 N
 * -c) 1.205E-14 N
 * -d) 1.325E-14 N
 * +e) 1.458E-14 N

4) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=2.0\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=1.2\text{ m}$$.


 * -a) 8.933E+00 V/m2
 * -b) 9.826E+00 V/m2
 * +c) 1.081E+01 V/m2
 * -d) 1.189E+01 V/m2
 * -e) 1.308E+01 V/m2

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Key: Z1
1) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.8\text{ m}$$ and the surface charge density is $$\sigma=9\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.83\text{ m}$$.


 * +a) 2.898E+01 V/m2
 * -b) 3.188E+01 V/m2
 * -c) 3.507E+01 V/m2
 * -d) 3.857E+01 V/m2
 * -e) 4.243E+01 V/m2

2) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.2 m.  Evaluate $$f(x,y)$$ at x=0.54 m if a=0.76 m, b=1.7 m.  The total charge on the rod is 8 nC.


 * -a) 1.399E+01 V/m2
 * +b) 1.539E+01 V/m2
 * -c) 1.693E+01 V/m2
 * -d) 1.862E+01 V/m2
 * -e) 2.049E+01 V/m2

3) A large thin isolated square plate has an area of 3 m2. It is uniformly charged with 9 nC of charge. What is the magnitude of the electric field 3 mm from the center of the plate's surface?


 * +a) 1.694E+02 N/C
 * -b) 1.864E+02 N/C
 * -c) 2.050E+02 N/C
 * -d) 2.255E+02 N/C
 * -e) 2.480E+02 N/C

4) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=4\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * -a) 2.544E-14 N
 * -b) 2.798E-14 N
 * -c) 3.078E-14 N
 * +d) 3.385E-14 N
 * -e) 3.724E-14 N

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Key: Z2
1) Three small charged objects are placed as shown, where $$b=2a$$, and $$a=6\times 10^{-7}\text{m}$$. What is the magnitude of the net force on $$q_2$$ if $$q_1=3e$$, $$q_2=-7e$$, and $$q_3=6e$$?


 * -a) 1.028E-14 N
 * -b) 1.130E-14 N
 * -c) 1.244E-14 N
 * -d) 1.368E-14 N
 * +e) 1.505E-14 N

2) $$E(z)=\int_{0}^R f(r',z)dr'$$ is an integral that calculates the magnitude of the electric field at a distance $$z$$ fromthe center of a thin circular disk as measured along a line normal to the plane of the disk.  The disk's radius is $$R=1.4\text{ m}$$ and the surface charge density is $$\sigma=6\text{ nC/m}^3$$. Evaluate $$f(r',z)$$ at $$r'=0.56\text{ m}$$.


 * -a) 2.567E+01 V/m2
 * -b) 2.824E+01 V/m2
 * -c) 3.106E+01 V/m2
 * -d) 3.417E+01 V/m2
 * +e) 3.759E+01 V/m2

3) $$E_z(x=0,z)=\int_{-a}^b f(x,z)dx$$ is an integral that calculates the z-component of the electric field at point P situated above the x-axis where a charged rod of length (a+b) is located. The distance between point P and the x-axis is z=1.7 m.  Evaluate $$f(x,y)$$ at x=0.76 m if a=1.1 m, b=1.6 m.  The total charge on the rod is 8 nC.


 * -a) 5.267E+00 V/m2
 * -b) 5.794E+00 V/m2
 * -c) 6.374E+00 V/m2
 * +d) 7.011E+00 V/m2
 * -e) 7.712E+00 V/m2

4) A large thin isolated square plate has an area of 6 m2. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?


 * -a) 3.214E+01 N/C
 * -b) 3.536E+01 N/C
 * -c) 3.889E+01 N/C
 * -d) 4.278E+01 N/C
 * +e) 4.706E+01 N/C

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