Quizbank/Electricity and Magnetism (calculus based)/c11

calcPhyEMq/c11 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.

c11 A0
1) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?


 * a) 5.076E-01 A
 * b) 5.584E-01 A
 * c) 6.142E-01 A
 * d) 6.757E-01 A
 * e) 7.432E-01 A

2) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?


 * a) 1.141E-05 s
 * b) 1.255E-05 s
 * c) 1.381E-05 s
 * d) 1.519E-05 s
 * e) 1.671E-05 s

3) The silver ribbon shown are a=4.26 cm, b=3.62 cm, and c= 1.5 cm. The current carries a current of 181 A and it lies in a uniform magnetic field of 1.96 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 2.275E-06 V
 * b) 2.502E-06 V
 * c) 2.752E-06 V
 * d) 3.027E-06 V
 * e) 3.330E-06 V

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.629E-07 s
 * b) 5.092E-07 s
 * c) 5.601E-07 s
 * d) 6.161E-07 s
 * e) 6.777E-07 s

c11 A1
1) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 7.202E-06 V
 * b) 7.922E-06 V
 * c) 8.714E-06 V
 * d) 9.586E-06 V
 * e) 1.054E-05 V

2) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?


 * a) 2.730E-06 s
 * b) 3.003E-06 s
 * c) 3.303E-06 s
 * d) 3.633E-06 s
 * e) 3.997E-06 s

3) A 97 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.753 T. What current is required to maintain this balance?


 * a) 7.056E-02 A
 * b) 7.762E-02 A
 * c) 8.538E-02 A
 * d) 9.392E-02 A
 * e) 1.033E-01 A

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 2.819E-07 s
 * b) 3.101E-07 s
 * c) 3.411E-07 s
 * d) 3.752E-07 s
 * e) 4.128E-07 s

c11 A2
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.212E-07 s
 * b) 1.333E-07 s
 * c) 1.466E-07 s
 * d) 1.613E-07 s
 * e) 1.774E-07 s

2) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 7.202E-06 V
 * b) 7.922E-06 V
 * c) 8.714E-06 V
 * d) 9.586E-06 V
 * e) 1.054E-05 V

3) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * a) 1.432E+00 A
 * b) 1.575E+00 A
 * c) 1.732E+00 A
 * d) 1.905E+00 A
 * e) 2.096E+00 A

4) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?


 * a) 3.154E-05 s
 * b) 3.470E-05 s
 * c) 3.817E-05 s
 * d) 4.198E-05 s
 * e) 4.618E-05 s

c11 B0
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.21 i + 5.39 j  + 3.81 k) x 104 m/s?


 * a) 4.419E-14 N
 * b) 4.861E-14 N
 * c) 5.347E-14 N
 * d) 5.882E-14 N
 * e) 6.470E-14 N

2) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.761 T magnetic field is directed 44&deg; away from the wire?


 * a) 2.527E+00 N/m
 * b) 2.780E+00 N/m
 * c) 3.058E+00 N/m
 * d) 3.364E+00 N/m
 * e) 3.700E+00 N/m

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * a) 2.875E+00 MeV
 * b) 3.162E+00 MeV
 * c) 3.479E+00 MeV
 * d) 3.827E+00 MeV
 * e) 4.209E+00 MeV

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 2.768E+05 m/s
 * b) 3.045E+05 m/s
 * c) 3.349E+05 m/s
 * d) 3.684E+05 m/s
 * e) 4.052E+05 m/s

c11 B1
1) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23&deg; away from the wire?


 * a) 5.205E-01 N/m
 * b) 5.725E-01 N/m
 * c) 6.297E-01 N/m
 * d) 6.927E-01 N/m
 * e) 7.620E-01 N/m

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.55 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.96 i + 1.68 j  + 6.92 k) x 104 m/s?


 * a) 4.179E-14 N
 * b) 4.596E-14 N
 * c) 5.056E-14 N
 * d) 5.562E-14 N
 * e) 6.118E-14 N

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?


 * a) 7.342E-01 MeV
 * b) 8.076E-01 MeV
 * c) 8.884E-01 MeV
 * d) 9.772E-01 MeV
 * e) 1.075E+00 MeV

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 9.223E+05 m/s
 * b) 1.015E+06 m/s
 * c) 1.116E+06 m/s
 * d) 1.228E+06 m/s
 * e) 1.350E+06 m/s

c11 B2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 4.982E+05 m/s
 * b) 5.480E+05 m/s
 * c) 6.028E+05 m/s
 * d) 6.631E+05 m/s
 * e) 7.294E+05 m/s

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (5.64 i + 1.93 j  + 8.71 k) x 104 m/s?


 * a) 1.757E-14 N
 * b) 1.933E-14 N
 * c) 2.126E-14 N
 * d) 2.339E-14 N
 * e) 2.573E-14 N

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?


 * a) 1.323E+01 MeV
 * b) 1.456E+01 MeV
 * c) 1.601E+01 MeV
 * d) 1.761E+01 MeV
 * e) 1.937E+01 MeV

4) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * a) 2.417E+00 N/m
 * b) 2.659E+00 N/m
 * c) 2.924E+00 N/m
 * d) 3.217E+00 N/m
 * e) 3.539E+00 N/m

c11 C0
1) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 &deg; to a uniform magnetic fied of 0.24 T?


 * a) 3.582E-07 N m
 * b) 3.940E-07 N m
 * c) 4.334E-07 N m
 * d) 4.768E-07 N m
 * e) 5.245E-07 N m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0393 T . It emerges after being deflected by 49&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.105E-07 s
 * b) 4.515E-07 s
 * c) 4.967E-07 s
 * d) 5.464E-07 s
 * e) 6.010E-07 s

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 5.554E+05 m/s
 * b) 6.110E+05 m/s
 * c) 6.720E+05 m/s
 * d) 7.393E+05 m/s
 * e) 8.132E+05 m/s

4) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?


 * a) 3.432E-01 A
 * b) 3.775E-01 A
 * c) 4.152E-01 A
 * d) 4.568E-01 A
 * e) 5.024E-01 A

c11 C1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 6.97 mT and 2.240E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 2.656E+05 m/s
 * b) 2.922E+05 m/s
 * c) 3.214E+05 m/s
 * d) 3.535E+05 m/s
 * e) 3.889E+05 m/s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.222E-06 s
 * b) 1.344E-06 s
 * c) 1.479E-06 s
 * d) 1.627E-06 s
 * e) 1.789E-06 s

3) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 &deg; to a uniform magnetic fied of 0.523 T?


 * a) 2.699E-06 N m
 * b) 2.969E-06 N m
 * c) 3.266E-06 N m
 * d) 3.593E-06 N m
 * e) 3.952E-06 N m

4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * a) 2.225E-01 A
 * b) 2.448E-01 A
 * c) 2.692E-01 A
 * d) 2.962E-01 A
 * e) 3.258E-01 A

c11 C2
1) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.408 T?


 * a) 1.476E-06 N m
 * b) 1.624E-06 N m
 * c) 1.786E-06 N m
 * d) 1.965E-06 N m
 * e) 2.162E-06 N m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 2.561E-07 s
 * b) 2.817E-07 s
 * c) 3.099E-07 s
 * d) 3.409E-07 s
 * e) 3.750E-07 s

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 2.768E+05 m/s
 * b) 3.045E+05 m/s
 * c) 3.349E+05 m/s
 * d) 3.684E+05 m/s
 * e) 4.052E+05 m/s

4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * a) 2.225E-01 A
 * b) 2.448E-01 A
 * c) 2.692E-01 A
 * d) 2.962E-01 A
 * e) 3.258E-01 A

c11 D0
1) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * a) 1.510E+00 N/m
 * b) 1.661E+00 N/m
 * c) 1.827E+00 N/m
 * d) 2.010E+00 N/m
 * e) 2.211E+00 N/m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 8.137E-07 s
 * b) 8.951E-07 s
 * c) 9.846E-07 s
 * d) 1.083E-06 s
 * e) 1.191E-06 s

3) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.174 T?


 * a) 1.075E-06 N m
 * b) 1.182E-06 N m
 * c) 1.301E-06 N m
 * d) 1.431E-06 N m
 * e) 1.574E-06 N m

4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * a) 2.225E-01 A
 * b) 2.448E-01 A
 * c) 2.692E-01 A
 * d) 2.962E-01 A
 * e) 3.258E-01 A

c11 D1
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 2.819E-07 s
 * b) 3.101E-07 s
 * c) 3.411E-07 s
 * d) 3.752E-07 s
 * e) 4.128E-07 s

2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 &deg; to a uniform magnetic fied of 0.184 T?


 * a) 5.610E-07 N m
 * b) 6.171E-07 N m
 * c) 6.788E-07 N m
 * d) 7.467E-07 N m
 * e) 8.213E-07 N m

3) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * a) 2.225E-01 A
 * b) 2.448E-01 A
 * c) 2.692E-01 A
 * d) 2.962E-01 A
 * e) 3.258E-01 A

4) A long rigind wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18&deg; away from the wire?


 * a) 4.950E-01 N/m
 * b) 5.445E-01 N/m
 * c) 5.990E-01 N/m
 * d) 6.589E-01 N/m
 * e) 7.248E-01 N/m

c11 D2
1) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 &deg; to a uniform magnetic fied of 0.523 T?


 * a) 2.699E-06 N m
 * b) 2.969E-06 N m
 * c) 3.266E-06 N m
 * d) 3.593E-06 N m
 * e) 3.952E-06 N m

2) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?


 * a) 3.999E-01 A
 * b) 4.398E-01 A
 * c) 4.838E-01 A
 * d) 5.322E-01 A
 * e) 5.854E-01 A

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0172 T . It emerges after being deflected by 85&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.627E-06 s
 * b) 1.790E-06 s
 * c) 1.969E-06 s
 * d) 2.166E-06 s
 * e) 2.382E-06 s

4) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * a) 1.510E+00 N/m
 * b) 1.661E+00 N/m
 * c) 1.827E+00 N/m
 * d) 2.010E+00 N/m
 * e) 2.211E+00 N/m

c11 E0
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.791E-07 s
 * b) 5.271E-07 s
 * c) 5.798E-07 s
 * d) 6.377E-07 s
 * e) 7.015E-07 s

2) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * a) 1.432E+00 A
 * b) 1.575E+00 A
 * c) 1.732E+00 A
 * d) 1.905E+00 A
 * e) 2.096E+00 A

3) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?


 * a) 5.792E-06 s
 * b) 6.371E-06 s
 * c) 7.008E-06 s
 * d) 7.709E-06 s
 * e) 8.480E-06 s

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (3.84 i + 8.79 j  + 9.05 k) x 104 m/s?


 * a) 7.509E-14 N
 * b) 8.259E-14 N
 * c) 9.085E-14 N
 * d) 9.994E-14 N
 * e) 1.099E-13 N

c11 E1
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.92 i + 1.55 j  + 6.22 k) x 104 m/s?


 * a) 2.074E-14 N
 * b) 2.282E-14 N
 * c) 2.510E-14 N
 * d) 2.761E-14 N
 * e) 3.037E-14 N

2) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?


 * a) 5.076E-01 A
 * b) 5.584E-01 A
 * c) 6.142E-01 A
 * d) 6.757E-01 A
 * e) 7.432E-01 A

3) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?


 * a) 3.154E-05 s
 * b) 3.470E-05 s
 * c) 3.817E-05 s
 * d) 4.198E-05 s
 * e) 4.618E-05 s

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.791E-07 s
 * b) 5.271E-07 s
 * c) 5.798E-07 s
 * d) 6.377E-07 s
 * e) 7.015E-07 s

c11 E2
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.222E-06 s
 * b) 1.344E-06 s
 * c) 1.479E-06 s
 * d) 1.627E-06 s
 * e) 1.789E-06 s

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (2.85 i + 1.28 j  + 8.49 k) x 104 m/s?


 * a) 2.222E-14 N
 * b) 2.444E-14 N
 * c) 2.688E-14 N
 * d) 2.957E-14 N
 * e) 3.253E-14 N

3) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?


 * a) 2.651E-01 A
 * b) 2.916E-01 A
 * c) 3.208E-01 A
 * d) 3.529E-01 A
 * e) 3.882E-01 A

4) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?


 * a) 4.784E-06 s
 * b) 5.262E-06 s
 * c) 5.788E-06 s
 * d) 6.367E-06 s
 * e) 7.004E-06 s

c11 F0
1) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?


 * a) 5.076E-01 A
 * b) 5.584E-01 A
 * c) 6.142E-01 A
 * d) 6.757E-01 A
 * e) 7.432E-01 A

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 2.095E-06 s
 * b) 2.305E-06 s
 * c) 2.535E-06 s
 * d) 2.789E-06 s
 * e) 3.067E-06 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?


 * a) 1.004E+00 MeV
 * b) 1.104E+00 MeV
 * c) 1.215E+00 MeV
 * d) 1.336E+00 MeV
 * e) 1.470E+00 MeV

4) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73&deg; away from the wire?


 * a) 3.575E+00 N/m
 * b) 3.932E+00 N/m
 * c) 4.325E+00 N/m
 * d) 4.758E+00 N/m
 * e) 5.234E+00 N/m

c11 F1
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.629E-07 s
 * b) 5.092E-07 s
 * c) 5.601E-07 s
 * d) 6.161E-07 s
 * e) 6.777E-07 s

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?


 * a) 8.491E+00 MeV
 * b) 9.340E+00 MeV
 * c) 1.027E+01 MeV
 * d) 1.130E+01 MeV
 * e) 1.243E+01 MeV

3) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?


 * a) 2.259E-01 A
 * b) 2.485E-01 A
 * c) 2.734E-01 A
 * d) 3.007E-01 A
 * e) 3.308E-01 A

4) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * a) 6.302E-01 N/m
 * b) 6.932E-01 N/m
 * c) 7.625E-01 N/m
 * d) 8.388E-01 N/m
 * e) 9.227E-01 N/m

c11 F2
1) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47&deg; away from the wire?


 * a) 4.096E+00 N/m
 * b) 4.505E+00 N/m
 * c) 4.956E+00 N/m
 * d) 5.451E+00 N/m
 * e) 5.996E+00 N/m

2) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * a) 3.106E-01 A
 * b) 3.416E-01 A
 * c) 3.758E-01 A
 * d) 4.134E-01 A
 * e) 4.547E-01 A

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?


 * a) 2.853E+00 MeV
 * b) 3.139E+00 MeV
 * c) 3.453E+00 MeV
 * d) 3.798E+00 MeV
 * e) 4.178E+00 MeV

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.940E-06 s
 * b) 2.134E-06 s
 * c) 2.347E-06 s
 * d) 2.582E-06 s
 * e) 2.840E-06 s

c11 G0
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (3.84 i + 8.79 j  + 9.05 k) x 104 m/s?


 * a) 7.509E-14 N
 * b) 8.259E-14 N
 * c) 9.085E-14 N
 * d) 9.994E-14 N
 * e) 1.099E-13 N

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 4.829E+05 m/s
 * b) 5.312E+05 m/s
 * c) 5.843E+05 m/s
 * d) 6.427E+05 m/s
 * e) 7.070E+05 m/s

3) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53&deg; away from the wire?


 * a) 8.520E-01 N/m
 * b) 9.372E-01 N/m
 * c) 1.031E+00 N/m
 * d) 1.134E+00 N/m
 * e) 1.247E+00 N/m

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.629E-07 s
 * b) 5.092E-07 s
 * c) 5.601E-07 s
 * d) 6.161E-07 s
 * e) 6.777E-07 s

c11 G1
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 8.137E-07 s
 * b) 8.951E-07 s
 * c) 9.846E-07 s
 * d) 1.083E-06 s
 * e) 1.191E-06 s

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 2.768E+05 m/s
 * b) 3.045E+05 m/s
 * c) 3.349E+05 m/s
 * d) 3.684E+05 m/s
 * e) 4.052E+05 m/s

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.16 i + 2.1 j  + 1.74 k) x 104 m/s?


 * a) 4.783E-14 N
 * b) 5.262E-14 N
 * c) 5.788E-14 N
 * d) 6.367E-14 N
 * e) 7.003E-14 N

4) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.761 T magnetic field is directed 44&deg; away from the wire?


 * a) 2.527E+00 N/m
 * b) 2.780E+00 N/m
 * c) 3.058E+00 N/m
 * d) 3.364E+00 N/m
 * e) 3.700E+00 N/m

c11 G2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 4.982E+05 m/s
 * b) 5.480E+05 m/s
 * c) 6.028E+05 m/s
 * d) 6.631E+05 m/s
 * e) 7.294E+05 m/s

2) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22&deg; away from the wire?


 * a) 1.062E+00 N/m
 * b) 1.168E+00 N/m
 * c) 1.285E+00 N/m
 * d) 1.413E+00 N/m
 * e) 1.555E+00 N/m

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.791E-07 s
 * b) 5.271E-07 s
 * c) 5.798E-07 s
 * d) 6.377E-07 s
 * e) 7.015E-07 s

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.13 i + 3.24 j  + 6.96 k) x 104 m/s?


 * a) 7.691E-14 N
 * b) 8.460E-14 N
 * c) 9.306E-14 N
 * d) 1.024E-13 N
 * e) 1.126E-13 N

c11 H0
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.070E+06 m/s
 * b) 1.177E+06 m/s
 * c) 1.295E+06 m/s
 * d) 1.424E+06 m/s
 * e) 1.566E+06 m/s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 2.280E-07 s
 * b) 2.508E-07 s
 * c) 2.759E-07 s
 * d) 3.035E-07 s
 * e) 3.339E-07 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.378 m and a magneticfield of 0.835 T. What is their maximum kinetic energy?


 * a) 4.365E+00 MeV
 * b) 4.801E+00 MeV
 * c) 5.281E+00 MeV
 * d) 5.809E+00 MeV
 * e) 6.390E+00 MeV

4) The silver ribbon shown are a=3.89 cm, b=3.43 cm, and c= 1.21 cm. The current carries a current of 77 A and it lies in a uniform magnetic field of 2.16 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.322E-06 V
 * b) 1.454E-06 V
 * c) 1.600E-06 V
 * d) 1.759E-06 V
 * e) 1.935E-06 V

c11 H1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 8.092E+05 m/s
 * b) 8.901E+05 m/s
 * c) 9.791E+05 m/s
 * d) 1.077E+06 m/s
 * e) 1.185E+06 m/s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.791E-07 s
 * b) 5.271E-07 s
 * c) 5.798E-07 s
 * d) 6.377E-07 s
 * e) 7.015E-07 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?


 * a) 6.534E+00 MeV
 * b) 7.187E+00 MeV
 * c) 7.906E+00 MeV
 * d) 8.697E+00 MeV
 * e) 9.566E+00 MeV

4) The silver ribbon shown are a=3.6 cm, b=2.68 cm, and c= 1.13 cm. The current carries a current of 97 A and it lies in a uniform magnetic field of 1.89 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.560E-06 V
 * b) 1.716E-06 V
 * c) 1.888E-06 V
 * d) 2.077E-06 V
 * e) 2.284E-06 V

c11 H2
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.897E-07 s
 * b) 2.087E-07 s
 * c) 2.296E-07 s
 * d) 2.525E-07 s
 * e) 2.778E-07 s

2) The silver ribbon shown are a=3.47 cm, b=2.98 cm, and c= 0.681 cm. The current carries a current of 289 A and it lies in a uniform magnetic field of 3.37 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.375E-05 V
 * b) 1.513E-05 V
 * c) 1.664E-05 V
 * d) 1.831E-05 V
 * e) 2.014E-05 V

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?


 * a) 7.476E+00 MeV
 * b) 8.224E+00 MeV
 * c) 9.046E+00 MeV
 * d) 9.951E+00 MeV
 * e) 1.095E+01 MeV

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 6.804E+05 m/s
 * b) 7.484E+05 m/s
 * c) 8.233E+05 m/s
 * d) 9.056E+05 m/s
 * e) 9.962E+05 m/s

c11 I0
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0172 T . It emerges after being deflected by 85&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.627E-06 s
 * b) 1.790E-06 s
 * c) 1.969E-06 s
 * d) 2.166E-06 s
 * e) 2.382E-06 s

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?


 * a) 5.798E+00 MeV
 * b) 6.377E+00 MeV
 * c) 7.015E+00 MeV
 * d) 7.717E+00 MeV
 * e) 8.488E+00 MeV

3) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 7.202E-06 V
 * b) 7.922E-06 V
 * c) 8.714E-06 V
 * d) 9.586E-06 V
 * e) 1.054E-05 V

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 2.746E+06 m/s
 * b) 3.021E+06 m/s
 * c) 3.323E+06 m/s
 * d) 3.655E+06 m/s
 * e) 4.020E+06 m/s

c11 I1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 4.829E+05 m/s
 * b) 5.312E+05 m/s
 * c) 5.843E+05 m/s
 * d) 6.427E+05 m/s
 * e) 7.070E+05 m/s

2) The silver ribbon shown are a=4.14 cm, b=3.69 cm, and c= 1.13 cm. The current carries a current of 291 A and it lies in a uniform magnetic field of 3.32 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 6.795E-06 V
 * b) 7.475E-06 V
 * c) 8.222E-06 V
 * d) 9.045E-06 V
 * e) 9.949E-06 V

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0279 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 7.270E-07 s
 * b) 7.997E-07 s
 * c) 8.797E-07 s
 * d) 9.676E-07 s
 * e) 1.064E-06 s

4) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?


 * a) 5.342E+00 MeV
 * b) 5.877E+00 MeV
 * c) 6.464E+00 MeV
 * d) 7.111E+00 MeV
 * e) 7.822E+00 MeV

c11 I2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 6.804E+05 m/s
 * b) 7.484E+05 m/s
 * c) 8.233E+05 m/s
 * d) 9.056E+05 m/s
 * e) 9.962E+05 m/s

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?


 * a) 6.534E+00 MeV
 * b) 7.187E+00 MeV
 * c) 7.906E+00 MeV
 * d) 8.697E+00 MeV
 * e) 9.566E+00 MeV

3) The silver ribbon shown are a=4.72 cm, b=4.17 cm, and c= 1.53 cm. The current carries a current of 235 A and it lies in a uniform magnetic field of 1.35 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.648E-06 V
 * b) 1.813E-06 V
 * c) 1.994E-06 V
 * d) 2.194E-06 V
 * e) 2.413E-06 V

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.212E-07 s
 * b) 1.333E-07 s
 * c) 1.466E-07 s
 * d) 1.613E-07 s
 * e) 1.774E-07 s

c11 J0
1) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * a) 2.417E+00 N/m
 * b) 2.659E+00 N/m
 * c) 2.924E+00 N/m
 * d) 3.217E+00 N/m
 * e) 3.539E+00 N/m

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?


 * a) 8.491E+00 MeV
 * b) 9.340E+00 MeV
 * c) 1.027E+01 MeV
 * d) 1.130E+01 MeV
 * e) 1.243E+01 MeV

3) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 &deg; to a uniform magnetic fied of 0.402 T?


 * a) 1.022E-06 N m
 * b) 1.124E-06 N m
 * c) 1.236E-06 N m
 * d) 1.360E-06 N m
 * e) 1.496E-06 N m

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 8.092E+05 m/s
 * b) 8.901E+05 m/s
 * c) 9.791E+05 m/s
 * d) 1.077E+06 m/s
 * e) 1.185E+06 m/s

c11 J1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 9.223E+05 m/s
 * b) 1.015E+06 m/s
 * c) 1.116E+06 m/s
 * d) 1.228E+06 m/s
 * e) 1.350E+06 m/s

2) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * a) 2.417E+00 N/m
 * b) 2.659E+00 N/m
 * c) 2.924E+00 N/m
 * d) 3.217E+00 N/m
 * e) 3.539E+00 N/m

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?


 * a) 6.029E+00 MeV
 * b) 6.631E+00 MeV
 * c) 7.295E+00 MeV
 * d) 8.024E+00 MeV
 * e) 8.827E+00 MeV

4) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.174 T?


 * a) 1.075E-06 N m
 * b) 1.182E-06 N m
 * c) 1.301E-06 N m
 * d) 1.431E-06 N m
 * e) 1.574E-06 N m

c11 J2
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?


 * a) 5.342E+00 MeV
 * b) 5.877E+00 MeV
 * c) 6.464E+00 MeV
 * d) 7.111E+00 MeV
 * e) 7.822E+00 MeV

2) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 &deg; to a uniform magnetic fied of 0.107 T?


 * a) 7.629E-07 N m
 * b) 8.392E-07 N m
 * c) 9.232E-07 N m
 * d) 1.015E-06 N m
 * e) 1.117E-06 N m

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 3.132E+05 m/s
 * b) 3.445E+05 m/s
 * c) 3.790E+05 m/s
 * d) 4.169E+05 m/s
 * e) 4.585E+05 m/s

4) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70&deg; away from the wire?


 * a) 2.348E+00 N/m
 * b) 2.583E+00 N/m
 * c) 2.842E+00 N/m
 * d) 3.126E+00 N/m
 * e) 3.438E+00 N/m

c11 K0
1) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.761 T magnetic field is directed 44&deg; away from the wire?


 * a) 2.527E+00 N/m
 * b) 2.780E+00 N/m
 * c) 3.058E+00 N/m
 * d) 3.364E+00 N/m
 * e) 3.700E+00 N/m

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?


 * a) 5.798E+00 MeV
 * b) 6.377E+00 MeV
 * c) 7.015E+00 MeV
 * d) 7.717E+00 MeV
 * e) 8.488E+00 MeV

3) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?


 * a) 6.626E-01 A
 * b) 7.289E-01 A
 * c) 8.018E-01 A
 * d) 8.819E-01 A
 * e) 9.701E-01 A

4) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?


 * a) 7.793E-06 s
 * b) 8.572E-06 s
 * c) 9.429E-06 s
 * d) 1.037E-05 s
 * e) 1.141E-05 s

c11 K1
1) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * a) 2.225E-01 A
 * b) 2.448E-01 A
 * c) 2.692E-01 A
 * d) 2.962E-01 A
 * e) 3.258E-01 A

2) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53&deg; away from the wire?


 * a) 8.520E-01 N/m
 * b) 9.372E-01 N/m
 * c) 1.031E+00 N/m
 * d) 1.134E+00 N/m
 * e) 1.247E+00 N/m

3) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?


 * a) 1.062E-05 s
 * b) 1.168E-05 s
 * c) 1.285E-05 s
 * d) 1.413E-05 s
 * e) 1.555E-05 s

4) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?


 * a) 1.004E+00 MeV
 * b) 1.104E+00 MeV
 * c) 1.215E+00 MeV
 * d) 1.336E+00 MeV
 * e) 1.470E+00 MeV

c11 K2
1) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?


 * a) 8.713E-06 s
 * b) 9.584E-06 s
 * c) 1.054E-05 s
 * d) 1.160E-05 s
 * e) 1.276E-05 s

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?


 * a) 8.881E+00 MeV
 * b) 9.769E+00 MeV
 * c) 1.075E+01 MeV
 * d) 1.182E+01 MeV
 * e) 1.300E+01 MeV

3) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * a) 1.432E+00 A
 * b) 1.575E+00 A
 * c) 1.732E+00 A
 * d) 1.905E+00 A
 * e) 2.096E+00 A

4) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * a) 1.510E+00 N/m
 * b) 1.661E+00 N/m
 * c) 1.827E+00 N/m
 * d) 2.010E+00 N/m
 * e) 2.211E+00 N/m

c11 L0
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?


 * a) 2.853E+00 MeV
 * b) 3.139E+00 MeV
 * c) 3.453E+00 MeV
 * d) 3.798E+00 MeV
 * e) 4.178E+00 MeV

2) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53&deg; away from the wire?


 * a) 1.001E+00 N/m
 * b) 1.101E+00 N/m
 * c) 1.211E+00 N/m
 * d) 1.332E+00 N/m
 * e) 1.465E+00 N/m

3) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?


 * a) 1.141E-05 s
 * b) 1.255E-05 s
 * c) 1.381E-05 s
 * d) 1.519E-05 s
 * e) 1.671E-05 s

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.97 i + 8.52 j  + 9.46 k) x 104 m/s?


 * a) 2.199E-13 N
 * b) 2.419E-13 N
 * c) 2.661E-13 N
 * d) 2.927E-13 N
 * e) 3.220E-13 N

c11 L1
1) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70&deg; away from the wire?


 * a) 2.348E+00 N/m
 * b) 2.583E+00 N/m
 * c) 2.842E+00 N/m
 * d) 3.126E+00 N/m
 * e) 3.438E+00 N/m

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (2.85 i + 1.28 j  + 8.49 k) x 104 m/s?


 * a) 2.222E-14 N
 * b) 2.444E-14 N
 * c) 2.688E-14 N
 * d) 2.957E-14 N
 * e) 3.253E-14 N

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * a) 2.875E+00 MeV
 * b) 3.162E+00 MeV
 * c) 3.479E+00 MeV
 * d) 3.827E+00 MeV
 * e) 4.209E+00 MeV

4) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?


 * a) 7.327E-06 s
 * b) 8.060E-06 s
 * c) 8.865E-06 s
 * d) 9.752E-06 s
 * e) 1.073E-05 s

c11 L2
1) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22&deg; away from the wire?


 * a) 1.062E+00 N/m
 * b) 1.168E+00 N/m
 * c) 1.285E+00 N/m
 * d) 1.413E+00 N/m
 * e) 1.555E+00 N/m

2) A charged particle in a magnetic field of 3.600E-04 T is moving perpendicular to the magnetic field with a speed of 5.960E+05 m/s. What is the period of orbit if orbital radius is 0.397 m?


 * a) 3.805E-06 s
 * b) 4.185E-06 s
 * c) 4.604E-06 s
 * d) 5.064E-06 s
 * e) 5.571E-06 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?


 * a) 1.336E+01 MeV
 * b) 1.470E+01 MeV
 * c) 1.617E+01 MeV
 * d) 1.779E+01 MeV
 * e) 1.957E+01 MeV

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (2.75 i + 9.06 j  + 3.5 k) x 104 m/s?


 * a) 2.899E-14 N
 * b) 3.189E-14 N
 * c) 3.508E-14 N
 * d) 3.859E-14 N
 * e) 4.245E-14 N

c11 M0
1) A circular current loop of radius 1.88 cm carries a current of 3.41 mA. What is the magnitude of the torque if the dipole is oriented at 62 &deg; to a uniform magnetic fied of 0.415 T?


 * a) 1.387E-06 N m
 * b) 1.526E-06 N m
 * c) 1.679E-06 N m
 * d) 1.847E-06 N m
 * e) 2.031E-06 N m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.940E-06 s
 * b) 2.134E-06 s
 * c) 2.347E-06 s
 * d) 2.582E-06 s
 * e) 2.840E-06 s

3) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?


 * a) 2.596E-01 A
 * b) 2.855E-01 A
 * c) 3.141E-01 A
 * d) 3.455E-01 A
 * e) 3.801E-01 A

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.13 i + 3.24 j  + 6.96 k) x 104 m/s?


 * a) 7.691E-14 N
 * b) 8.460E-14 N
 * c) 9.306E-14 N
 * d) 1.024E-13 N
 * e) 1.126E-13 N

c11 M1
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 9.857E-07 s
 * b) 1.084E-06 s
 * c) 1.193E-06 s
 * d) 1.312E-06 s
 * e) 1.443E-06 s

2) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?


 * a) 6.626E-01 A
 * b) 7.289E-01 A
 * c) 8.018E-01 A
 * d) 8.819E-01 A
 * e) 9.701E-01 A

3) A circular current loop of radius 1.63 cm carries a current of 2.38 mA. What is the magnitude of the torque if the dipole is oriented at 54 &deg; to a uniform magnetic fied of 0.125 T?


 * a) 2.009E-07 N m
 * b) 2.210E-07 N m
 * c) 2.431E-07 N m
 * d) 2.674E-07 N m
 * e) 2.941E-07 N m

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.97 i + 8.52 j  + 9.46 k) x 104 m/s?


 * a) 2.199E-13 N
 * b) 2.419E-13 N
 * c) 2.661E-13 N
 * d) 2.927E-13 N
 * e) 3.220E-13 N

c11 M2
1) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 &deg; to a uniform magnetic fied of 0.884 T?


 * a) 1.568E-06 N m
 * b) 1.724E-06 N m
 * c) 1.897E-06 N m
 * d) 2.087E-06 N m
 * e) 2.295E-06 N m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.453E-07 s
 * b) 4.898E-07 s
 * c) 5.388E-07 s
 * d) 5.927E-07 s
 * e) 6.519E-07 s

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.7 i + 2.31 j  + 7.08 k) x 104 m/s?


 * a) 1.828E-14 N
 * b) 2.010E-14 N
 * c) 2.211E-14 N
 * d) 2.433E-14 N
 * e) 2.676E-14 N

4) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?


 * a) 6.626E-01 A
 * b) 7.289E-01 A
 * c) 8.018E-01 A
 * d) 8.819E-01 A
 * e) 9.701E-01 A

c11 N0
1) The silver ribbon shown are a=3.32 cm, b=2.81 cm, and c= 0.996 cm. The current carries a current of 121 A and it lies in a uniform magnetic field of 1.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.080E-06 V
 * b) 1.188E-06 V
 * c) 1.306E-06 V
 * d) 1.437E-06 V
 * e) 1.581E-06 V

2) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65&deg; away from the wire?


 * a) 4.908E+00 N/m
 * b) 5.399E+00 N/m
 * c) 5.939E+00 N/m
 * d) 6.533E+00 N/m
 * e) 7.186E+00 N/m

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.13 i + 3.24 j  + 6.96 k) x 104 m/s?


 * a) 7.691E-14 N
 * b) 8.460E-14 N
 * c) 9.306E-14 N
 * d) 1.024E-13 N
 * e) 1.126E-13 N

4) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * a) 3.106E-01 A
 * b) 3.416E-01 A
 * c) 3.758E-01 A
 * d) 4.134E-01 A
 * e) 4.547E-01 A

c11 N1
1) The silver ribbon shown are a=3.68 cm, b=2.66 cm, and c= 0.505 cm. The current carries a current of 113 A and it lies in a uniform magnetic field of 3.12 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 6.104E-06 V
 * b) 6.714E-06 V
 * c) 7.385E-06 V
 * d) 8.124E-06 V
 * e) 8.936E-06 V

2) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * a) 2.417E+00 N/m
 * b) 2.659E+00 N/m
 * c) 2.924E+00 N/m
 * d) 3.217E+00 N/m
 * e) 3.539E+00 N/m

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.13 i + 3.24 j  + 6.96 k) x 104 m/s?


 * a) 7.691E-14 N
 * b) 8.460E-14 N
 * c) 9.306E-14 N
 * d) 1.024E-13 N
 * e) 1.126E-13 N

4) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?


 * a) 1.644E-01 A
 * b) 1.808E-01 A
 * c) 1.989E-01 A
 * d) 2.188E-01 A
 * e) 2.406E-01 A

c11 N2
1) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * a) 1.510E+00 N/m
 * b) 1.661E+00 N/m
 * c) 1.827E+00 N/m
 * d) 2.010E+00 N/m
 * e) 2.211E+00 N/m

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.21 i + 5.39 j  + 3.81 k) x 104 m/s?


 * a) 4.419E-14 N
 * b) 4.861E-14 N
 * c) 5.347E-14 N
 * d) 5.882E-14 N
 * e) 6.470E-14 N

3) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 7.202E-06 V
 * b) 7.922E-06 V
 * c) 8.714E-06 V
 * d) 9.586E-06 V
 * e) 1.054E-05 V

4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?


 * a) 2.596E-01 A
 * b) 2.855E-01 A
 * c) 3.141E-01 A
 * d) 3.455E-01 A
 * e) 3.801E-01 A

c11 O0
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 6.97 mT and 2.240E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 2.656E+05 m/s
 * b) 2.922E+05 m/s
 * c) 3.214E+05 m/s
 * d) 3.535E+05 m/s
 * e) 3.889E+05 m/s

2) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?


 * a) 6.080E-06 s
 * b) 6.688E-06 s
 * c) 7.356E-06 s
 * d) 8.092E-06 s
 * e) 8.901E-06 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?


 * a) 1.336E+01 MeV
 * b) 1.470E+01 MeV
 * c) 1.617E+01 MeV
 * d) 1.779E+01 MeV
 * e) 1.957E+01 MeV

4) The silver ribbon shown are a=4.14 cm, b=3.69 cm, and c= 1.13 cm. The current carries a current of 291 A and it lies in a uniform magnetic field of 3.32 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 6.795E-06 V
 * b) 7.475E-06 V
 * c) 8.222E-06 V
 * d) 9.045E-06 V
 * e) 9.949E-06 V

c11 O1
1) The silver ribbon shown are a=3.96 cm, b=3.35 cm, and c= 1.07 cm. The current carries a current of 295 A and it lies in a uniform magnetic field of 3.4 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 9.015E-06 V
 * b) 9.916E-06 V
 * c) 1.091E-05 V
 * d) 1.200E-05 V
 * e) 1.320E-05 V

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?


 * a) 7.476E+00 MeV
 * b) 8.224E+00 MeV
 * c) 9.046E+00 MeV
 * d) 9.951E+00 MeV
 * e) 1.095E+01 MeV

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.88 mT and 7.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.504E+06 m/s
 * b) 1.655E+06 m/s
 * c) 1.820E+06 m/s
 * d) 2.002E+06 m/s
 * e) 2.202E+06 m/s

4) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?


 * a) 1.141E-05 s
 * b) 1.255E-05 s
 * c) 1.381E-05 s
 * d) 1.519E-05 s
 * e) 1.671E-05 s

c11 O2
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?


 * a) 8.881E+00 MeV
 * b) 9.769E+00 MeV
 * c) 1.075E+01 MeV
 * d) 1.182E+01 MeV
 * e) 1.300E+01 MeV

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 4.829E+05 m/s
 * b) 5.312E+05 m/s
 * c) 5.843E+05 m/s
 * d) 6.427E+05 m/s
 * e) 7.070E+05 m/s

3) The silver ribbon shown are a=4.12 cm, b=3.32 cm, and c= 1.46 cm. The current carries a current of 120 A and it lies in a uniform magnetic field of 1.39 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.209E-06 V
 * b) 1.329E-06 V
 * c) 1.462E-06 V
 * d) 1.609E-06 V
 * e) 1.770E-06 V

4) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?


 * a) 1.688E-05 s
 * b) 1.856E-05 s
 * c) 2.042E-05 s
 * d) 2.246E-05 s
 * e) 2.471E-05 s

c11 P0
1) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 &deg; to a uniform magnetic fied of 0.402 T?


 * a) 1.022E-06 N m
 * b) 1.124E-06 N m
 * c) 1.236E-06 N m
 * d) 1.360E-06 N m
 * e) 1.496E-06 N m

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.04 mT and 7.820E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.060E+06 m/s
 * b) 1.166E+06 m/s
 * c) 1.282E+06 m/s
 * d) 1.411E+06 m/s
 * e) 1.552E+06 m/s

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 6.96 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (7.01 i + 5.35 j  + 2.07 k) x 104 m/s?


 * a) 1.192E-13 N
 * b) 1.311E-13 N
 * c) 1.442E-13 N
 * d) 1.586E-13 N
 * e) 1.745E-13 N

4) The silver ribbon shown are a=4.14 cm, b=3.69 cm, and c= 1.13 cm. The current carries a current of 291 A and it lies in a uniform magnetic field of 3.32 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 6.795E-06 V
 * b) 7.475E-06 V
 * c) 8.222E-06 V
 * d) 9.045E-06 V
 * e) 9.949E-06 V

c11 P1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.362E+06 m/s
 * b) 1.498E+06 m/s
 * c) 1.647E+06 m/s
 * d) 1.812E+06 m/s
 * e) 1.993E+06 m/s

2) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 &deg; to a uniform magnetic fied of 0.189 T?


 * a) 1.113E-07 N m
 * b) 1.224E-07 N m
 * c) 1.347E-07 N m
 * d) 1.481E-07 N m
 * e) 1.629E-07 N m

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.97 i + 8.52 j  + 9.46 k) x 104 m/s?


 * a) 2.199E-13 N
 * b) 2.419E-13 N
 * c) 2.661E-13 N
 * d) 2.927E-13 N
 * e) 3.220E-13 N

4) The silver ribbon shown are a=4.65 cm, b=3.43 cm, and c= 1.15 cm. The current carries a current of 279 A and it lies in a uniform magnetic field of 3.48 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 6.100E-06 V
 * b) 6.710E-06 V
 * c) 7.381E-06 V
 * d) 8.120E-06 V
 * e) 8.931E-06 V

c11 P2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 5.554E+05 m/s
 * b) 6.110E+05 m/s
 * c) 6.720E+05 m/s
 * d) 7.393E+05 m/s
 * e) 8.132E+05 m/s

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.21 i + 5.39 j  + 3.81 k) x 104 m/s?


 * a) 4.419E-14 N
 * b) 4.861E-14 N
 * c) 5.347E-14 N
 * d) 5.882E-14 N
 * e) 6.470E-14 N

3) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 &deg; to a uniform magnetic fied of 0.523 T?


 * a) 2.699E-06 N m
 * b) 2.969E-06 N m
 * c) 3.266E-06 N m
 * d) 3.593E-06 N m
 * e) 3.952E-06 N m

4) The silver ribbon shown are a=4.26 cm, b=3.62 cm, and c= 1.5 cm. The current carries a current of 181 A and it lies in a uniform magnetic field of 1.96 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 2.275E-06 V
 * b) 2.502E-06 V
 * c) 2.752E-06 V
 * d) 3.027E-06 V
 * e) 3.330E-06 V

c11 Q0
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.362E+06 m/s
 * b) 1.498E+06 m/s
 * c) 1.647E+06 m/s
 * d) 1.812E+06 m/s
 * e) 1.993E+06 m/s

2) The silver ribbon shown are a=3.89 cm, b=3.43 cm, and c= 1.21 cm. The current carries a current of 77 A and it lies in a uniform magnetic field of 2.16 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.322E-06 V
 * b) 1.454E-06 V
 * c) 1.600E-06 V
 * d) 1.759E-06 V
 * e) 1.935E-06 V

3) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?


 * a) 2.651E-01 A
 * b) 2.916E-01 A
 * c) 3.208E-01 A
 * d) 3.529E-01 A
 * e) 3.882E-01 A

4) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26&deg; away from the wire?


 * a) 3.840E-01 N/m
 * b) 4.224E-01 N/m
 * c) 4.647E-01 N/m
 * d) 5.111E-01 N/m
 * e) 5.623E-01 N/m

c11 Q1
1) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * a) 1.510E+00 N/m
 * b) 1.661E+00 N/m
 * c) 1.827E+00 N/m
 * d) 2.010E+00 N/m
 * e) 2.211E+00 N/m

2) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * a) 3.106E-01 A
 * b) 3.416E-01 A
 * c) 3.758E-01 A
 * d) 4.134E-01 A
 * e) 4.547E-01 A

3) The silver ribbon shown are a=3.89 cm, b=2.94 cm, and c= 0.58 cm. The current carries a current of 242 A and it lies in a uniform magnetic field of 2.47 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 9.911E-06 V
 * b) 1.090E-05 V
 * c) 1.199E-05 V
 * d) 1.319E-05 V
 * e) 1.451E-05 V

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.362E+06 m/s
 * b) 1.498E+06 m/s
 * c) 1.647E+06 m/s
 * d) 1.812E+06 m/s
 * e) 1.993E+06 m/s

c11 Q2
1) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53&deg; away from the wire?


 * a) 1.001E+00 N/m
 * b) 1.101E+00 N/m
 * c) 1.211E+00 N/m
 * d) 1.332E+00 N/m
 * e) 1.465E+00 N/m

2) The silver ribbon shown are a=3.89 cm, b=3.43 cm, and c= 1.21 cm. The current carries a current of 77 A and it lies in a uniform magnetic field of 2.16 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.322E-06 V
 * b) 1.454E-06 V
 * c) 1.600E-06 V
 * d) 1.759E-06 V
 * e) 1.935E-06 V

3) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * a) 3.106E-01 A
 * b) 3.416E-01 A
 * c) 3.758E-01 A
 * d) 4.134E-01 A
 * e) 4.547E-01 A

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.34 mT and 7.430E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.671E+06 m/s
 * b) 1.838E+06 m/s
 * c) 2.022E+06 m/s
 * d) 2.225E+06 m/s
 * e) 2.447E+06 m/s

c11 R0
1) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * a) 6.302E-01 N/m
 * b) 6.932E-01 N/m
 * c) 7.625E-01 N/m
 * d) 8.388E-01 N/m
 * e) 9.227E-01 N/m

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 5.554E+05 m/s
 * b) 6.110E+05 m/s
 * c) 6.720E+05 m/s
 * d) 7.393E+05 m/s
 * e) 8.132E+05 m/s

3) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 &deg; to a uniform magnetic fied of 0.156 T?


 * a) 1.903E-07 N m
 * b) 2.093E-07 N m
 * c) 2.302E-07 N m
 * d) 2.532E-07 N m
 * e) 2.785E-07 N m

4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?


 * a) 2.596E-01 A
 * b) 2.855E-01 A
 * c) 3.141E-01 A
 * d) 3.455E-01 A
 * e) 3.801E-01 A

c11 R1
1) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?


 * a) 2.259E-01 A
 * b) 2.485E-01 A
 * c) 2.734E-01 A
 * d) 3.007E-01 A
 * e) 3.308E-01 A

2) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26&deg; away from the wire?


 * a) 3.840E-01 N/m
 * b) 4.224E-01 N/m
 * c) 4.647E-01 N/m
 * d) 5.111E-01 N/m
 * e) 5.623E-01 N/m

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 2.746E+06 m/s
 * b) 3.021E+06 m/s
 * c) 3.323E+06 m/s
 * d) 3.655E+06 m/s
 * e) 4.020E+06 m/s

4) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.174 T?


 * a) 1.075E-06 N m
 * b) 1.182E-06 N m
 * c) 1.301E-06 N m
 * d) 1.431E-06 N m
 * e) 1.574E-06 N m

c11 R2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.676E+06 m/s
 * b) 1.843E+06 m/s
 * c) 2.028E+06 m/s
 * d) 2.230E+06 m/s
 * e) 2.453E+06 m/s

2) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?


 * a) 1.644E-01 A
 * b) 1.808E-01 A
 * c) 1.989E-01 A
 * d) 2.188E-01 A
 * e) 2.406E-01 A

3) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 &deg; to a uniform magnetic fied of 0.523 T?


 * a) 2.699E-06 N m
 * b) 2.969E-06 N m
 * c) 3.266E-06 N m
 * d) 3.593E-06 N m
 * e) 3.952E-06 N m

4) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * a) 6.302E-01 N/m
 * b) 6.932E-01 N/m
 * c) 7.625E-01 N/m
 * d) 8.388E-01 N/m
 * e) 9.227E-01 N/m

c11 S0
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?


 * a) 6.029E+00 MeV
 * b) 6.631E+00 MeV
 * c) 7.295E+00 MeV
 * d) 8.024E+00 MeV
 * e) 8.827E+00 MeV

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 9.223E+05 m/s
 * b) 1.015E+06 m/s
 * c) 1.116E+06 m/s
 * d) 1.228E+06 m/s
 * e) 1.350E+06 m/s

3) The silver ribbon shown are a=4.12 cm, b=3.32 cm, and c= 1.46 cm. The current carries a current of 120 A and it lies in a uniform magnetic field of 1.39 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.209E-06 V
 * b) 1.329E-06 V
 * c) 1.462E-06 V
 * d) 1.609E-06 V
 * e) 1.770E-06 V

4) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65&deg; away from the wire?


 * a) 4.908E+00 N/m
 * b) 5.399E+00 N/m
 * c) 5.939E+00 N/m
 * d) 6.533E+00 N/m
 * e) 7.186E+00 N/m

c11 S1
1) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.893 T magnetic field is directed 66&deg; away from the wire?


 * a) 2.697E+00 N/m
 * b) 2.967E+00 N/m
 * c) 3.263E+00 N/m
 * d) 3.590E+00 N/m
 * e) 3.948E+00 N/m

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * a) 2.875E+00 MeV
 * b) 3.162E+00 MeV
 * c) 3.479E+00 MeV
 * d) 3.827E+00 MeV
 * e) 4.209E+00 MeV

3) The silver ribbon shown are a=3.68 cm, b=2.66 cm, and c= 0.505 cm. The current carries a current of 113 A and it lies in a uniform magnetic field of 3.12 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 6.104E-06 V
 * b) 6.714E-06 V
 * c) 7.385E-06 V
 * d) 8.124E-06 V
 * e) 8.936E-06 V

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 6.804E+05 m/s
 * b) 7.484E+05 m/s
 * c) 8.233E+05 m/s
 * d) 9.056E+05 m/s
 * e) 9.962E+05 m/s

c11 S2
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?


 * a) 1.004E+00 MeV
 * b) 1.104E+00 MeV
 * c) 1.215E+00 MeV
 * d) 1.336E+00 MeV
 * e) 1.470E+00 MeV

2) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * a) 6.302E-01 N/m
 * b) 6.932E-01 N/m
 * c) 7.625E-01 N/m
 * d) 8.388E-01 N/m
 * e) 9.227E-01 N/m

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.070E+06 m/s
 * b) 1.177E+06 m/s
 * c) 1.295E+06 m/s
 * d) 1.424E+06 m/s
 * e) 1.566E+06 m/s

4) The silver ribbon shown are a=4.12 cm, b=3.32 cm, and c= 1.46 cm. The current carries a current of 120 A and it lies in a uniform magnetic field of 1.39 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.209E-06 V
 * b) 1.329E-06 V
 * c) 1.462E-06 V
 * d) 1.609E-06 V
 * e) 1.770E-06 V

c11 T0
1) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?


 * a) 2.730E-06 s
 * b) 3.003E-06 s
 * c) 3.303E-06 s
 * d) 3.633E-06 s
 * e) 3.997E-06 s

2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 &deg; to a uniform magnetic fied of 0.184 T?


 * a) 5.610E-07 N m
 * b) 6.171E-07 N m
 * c) 6.788E-07 N m
 * d) 7.467E-07 N m
 * e) 8.213E-07 N m

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 8.092E+05 m/s
 * b) 8.901E+05 m/s
 * c) 9.791E+05 m/s
 * d) 1.077E+06 m/s
 * e) 1.185E+06 m/s

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.91 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (4.96 i + 6.81 j  + 8.66 k) x 104 m/s?


 * a) 9.727E-14 N
 * b) 1.070E-13 N
 * c) 1.177E-13 N
 * d) 1.295E-13 N
 * e) 1.424E-13 N

c11 T1
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (3.84 i + 8.79 j  + 9.05 k) x 104 m/s?


 * a) 7.509E-14 N
 * b) 8.259E-14 N
 * c) 9.085E-14 N
 * d) 9.994E-14 N
 * e) 1.099E-13 N

2) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?


 * a) 2.189E-05 s
 * b) 2.408E-05 s
 * c) 2.649E-05 s
 * d) 2.914E-05 s
 * e) 3.205E-05 s

3) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 &deg; to a uniform magnetic fied of 0.276 T?


 * a) 4.188E-07 N m
 * b) 4.607E-07 N m
 * c) 5.068E-07 N m
 * d) 5.574E-07 N m
 * e) 6.132E-07 N m

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 3.132E+05 m/s
 * b) 3.445E+05 m/s
 * c) 3.790E+05 m/s
 * d) 4.169E+05 m/s
 * e) 4.585E+05 m/s

c11 T2
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.91 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (4.96 i + 6.81 j  + 8.66 k) x 104 m/s?


 * a) 9.727E-14 N
 * b) 1.070E-13 N
 * c) 1.177E-13 N
 * d) 1.295E-13 N
 * e) 1.424E-13 N

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.362E+06 m/s
 * b) 1.498E+06 m/s
 * c) 1.647E+06 m/s
 * d) 1.812E+06 m/s
 * e) 1.993E+06 m/s

3) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.408 T?


 * a) 1.476E-06 N m
 * b) 1.624E-06 N m
 * c) 1.786E-06 N m
 * d) 1.965E-06 N m
 * e) 2.162E-06 N m

4) A charged particle in a magnetic field of 3.600E-04 T is moving perpendicular to the magnetic field with a speed of 5.960E+05 m/s. What is the period of orbit if orbital radius is 0.397 m?


 * a) 3.805E-06 s
 * b) 4.185E-06 s
 * c) 4.604E-06 s
 * d) 5.064E-06 s
 * e) 5.571E-06 s

c11 U0
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?


 * a) 5.342E+00 MeV
 * b) 5.877E+00 MeV
 * c) 6.464E+00 MeV
 * d) 7.111E+00 MeV
 * e) 7.822E+00 MeV

2) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?


 * a) 5.076E-01 A
 * b) 5.584E-01 A
 * c) 6.142E-01 A
 * d) 6.757E-01 A
 * e) 7.432E-01 A

3) The silver ribbon shown are a=3.89 cm, b=3.43 cm, and c= 1.21 cm. The current carries a current of 77 A and it lies in a uniform magnetic field of 2.16 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.322E-06 V
 * b) 1.454E-06 V
 * c) 1.600E-06 V
 * d) 1.759E-06 V
 * e) 1.935E-06 V

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (2.85 i + 1.28 j  + 8.49 k) x 104 m/s?


 * a) 2.222E-14 N
 * b) 2.444E-14 N
 * c) 2.688E-14 N
 * d) 2.957E-14 N
 * e) 3.253E-14 N

c11 U1
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?


 * a) 8.881E+00 MeV
 * b) 9.769E+00 MeV
 * c) 1.075E+01 MeV
 * d) 1.182E+01 MeV
 * e) 1.300E+01 MeV

2) The silver ribbon shown are a=3.84 cm, b=3.45 cm, and c= 1.38 cm. The current carries a current of 92 A and it lies in a uniform magnetic field of 1.35 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 7.153E-07 V
 * b) 7.869E-07 V
 * c) 8.655E-07 V
 * d) 9.521E-07 V
 * e) 1.047E-06 V

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.92 i + 1.55 j  + 6.22 k) x 104 m/s?


 * a) 2.074E-14 N
 * b) 2.282E-14 N
 * c) 2.510E-14 N
 * d) 2.761E-14 N
 * e) 3.037E-14 N

4) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * a) 1.432E+00 A
 * b) 1.575E+00 A
 * c) 1.732E+00 A
 * d) 1.905E+00 A
 * e) 2.096E+00 A

c11 U2
1) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?


 * a) 3.999E-01 A
 * b) 4.398E-01 A
 * c) 4.838E-01 A
 * d) 5.322E-01 A
 * e) 5.854E-01 A

2) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 7.202E-06 V
 * b) 7.922E-06 V
 * c) 8.714E-06 V
 * d) 9.586E-06 V
 * e) 1.054E-05 V

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.97 i + 8.52 j  + 9.46 k) x 104 m/s?


 * a) 2.199E-13 N
 * b) 2.419E-13 N
 * c) 2.661E-13 N
 * d) 2.927E-13 N
 * e) 3.220E-13 N

4) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * a) 2.875E+00 MeV
 * b) 3.162E+00 MeV
 * c) 3.479E+00 MeV
 * d) 3.827E+00 MeV
 * e) 4.209E+00 MeV

c11 V0
1) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?


 * a) 2.596E-01 A
 * b) 2.855E-01 A
 * c) 3.141E-01 A
 * d) 3.455E-01 A
 * e) 3.801E-01 A

2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?


 * a) 4.543E-06 s
 * b) 4.997E-06 s
 * c) 5.497E-06 s
 * d) 6.046E-06 s
 * e) 6.651E-06 s

3) The silver ribbon shown are a=4.65 cm, b=3.43 cm, and c= 1.15 cm. The current carries a current of 279 A and it lies in a uniform magnetic field of 3.48 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 6.100E-06 V
 * b) 6.710E-06 V
 * c) 7.381E-06 V
 * d) 8.120E-06 V
 * e) 8.931E-06 V

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.940E-06 s
 * b) 2.134E-06 s
 * c) 2.347E-06 s
 * d) 2.582E-06 s
 * e) 2.840E-06 s

c11 V1
1) The silver ribbon shown are a=3.74 cm, b=2.68 cm, and c= 0.415 cm. The current carries a current of 228 A and it lies in a uniform magnetic field of 1.49 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 8.660E-06 V
 * b) 9.526E-06 V
 * c) 1.048E-05 V
 * d) 1.153E-05 V
 * e) 1.268E-05 V

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.791E-07 s
 * b) 5.271E-07 s
 * c) 5.798E-07 s
 * d) 6.377E-07 s
 * e) 7.015E-07 s

3) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?


 * a) 2.651E-01 A
 * b) 2.916E-01 A
 * c) 3.208E-01 A
 * d) 3.529E-01 A
 * e) 3.882E-01 A

4) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?


 * a) 7.327E-06 s
 * b) 8.060E-06 s
 * c) 8.865E-06 s
 * d) 9.752E-06 s
 * e) 1.073E-05 s

c11 V2
1) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?


 * a) 5.792E-06 s
 * b) 6.371E-06 s
 * c) 7.008E-06 s
 * d) 7.709E-06 s
 * e) 8.480E-06 s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.897E-07 s
 * b) 2.087E-07 s
 * c) 2.296E-07 s
 * d) 2.525E-07 s
 * e) 2.778E-07 s

3) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?


 * a) 3.432E-01 A
 * b) 3.775E-01 A
 * c) 4.152E-01 A
 * d) 4.568E-01 A
 * e) 5.024E-01 A

4) The silver ribbon shown are a=3.89 cm, b=2.94 cm, and c= 0.58 cm. The current carries a current of 242 A and it lies in a uniform magnetic field of 2.47 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 9.911E-06 V
 * b) 1.090E-05 V
 * c) 1.199E-05 V
 * d) 1.319E-05 V
 * e) 1.451E-05 V

c11 W0
1) The silver ribbon shown are a=3.52 cm, b=2.88 cm, and c= 0.515 cm. The current carries a current of 137 A and it lies in a uniform magnetic field of 2.02 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 5.685E-06 V
 * b) 6.253E-06 V
 * c) 6.878E-06 V
 * d) 7.566E-06 V
 * e) 8.323E-06 V

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * a) 2.875E+00 MeV
 * b) 3.162E+00 MeV
 * c) 3.479E+00 MeV
 * d) 3.827E+00 MeV
 * e) 4.209E+00 MeV

3) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 &deg; to a uniform magnetic fied of 0.184 T?


 * a) 5.610E-07 N m
 * b) 6.171E-07 N m
 * c) 6.788E-07 N m
 * d) 7.467E-07 N m
 * e) 8.213E-07 N m

4) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * a) 6.302E-01 N/m
 * b) 6.932E-01 N/m
 * c) 7.625E-01 N/m
 * d) 8.388E-01 N/m
 * e) 9.227E-01 N/m

c11 W1
1) The silver ribbon shown are a=3.96 cm, b=3.35 cm, and c= 1.07 cm. The current carries a current of 295 A and it lies in a uniform magnetic field of 3.4 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 9.015E-06 V
 * b) 9.916E-06 V
 * c) 1.091E-05 V
 * d) 1.200E-05 V
 * e) 1.320E-05 V

2) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48&deg; away from the wire?


 * a) 1.131E+00 N/m
 * b) 1.244E+00 N/m
 * c) 1.368E+00 N/m
 * d) 1.505E+00 N/m
 * e) 1.655E+00 N/m

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?


 * a) 2.574E-01 MeV
 * b) 2.831E-01 MeV
 * c) 3.114E-01 MeV
 * d) 3.425E-01 MeV
 * e) 3.768E-01 MeV

4) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 &deg; to a uniform magnetic fied of 0.79 T?


 * a) 7.898E-07 N m
 * b) 8.688E-07 N m
 * c) 9.557E-07 N m
 * d) 1.051E-06 N m
 * e) 1.156E-06 N m

c11 W2
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?


 * a) 1.323E+01 MeV
 * b) 1.456E+01 MeV
 * c) 1.601E+01 MeV
 * d) 1.761E+01 MeV
 * e) 1.937E+01 MeV

2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 &deg; to a uniform magnetic fied of 0.184 T?


 * a) 5.610E-07 N m
 * b) 6.171E-07 N m
 * c) 6.788E-07 N m
 * d) 7.467E-07 N m
 * e) 8.213E-07 N m

3) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * a) 2.417E+00 N/m
 * b) 2.659E+00 N/m
 * c) 2.924E+00 N/m
 * d) 3.217E+00 N/m
 * e) 3.539E+00 N/m

4) The silver ribbon shown are a=4.26 cm, b=3.62 cm, and c= 1.5 cm. The current carries a current of 181 A and it lies in a uniform magnetic field of 1.96 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 2.275E-06 V
 * b) 2.502E-06 V
 * c) 2.752E-06 V
 * d) 3.027E-06 V
 * e) 3.330E-06 V

c11 X0
1) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?


 * a) 8.713E-06 s
 * b) 9.584E-06 s
 * c) 1.054E-05 s
 * d) 1.160E-05 s
 * e) 1.276E-05 s

2) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65&deg; away from the wire?


 * a) 4.908E+00 N/m
 * b) 5.399E+00 N/m
 * c) 5.939E+00 N/m
 * d) 6.533E+00 N/m
 * e) 7.186E+00 N/m

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0618 T . It emerges after being deflected by 67&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 3.245E-07 s
 * b) 3.569E-07 s
 * c) 3.926E-07 s
 * d) 4.319E-07 s
 * e) 4.751E-07 s

4) The silver ribbon shown are a=3.55 cm, b=2.99 cm, and c= 1.03 cm. The current carries a current of 135 A and it lies in a uniform magnetic field of 1.26 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.193E-06 V
 * b) 1.313E-06 V
 * c) 1.444E-06 V
 * d) 1.588E-06 V
 * e) 1.747E-06 V

c11 X1
1) The silver ribbon shown are a=4.65 cm, b=3.43 cm, and c= 1.15 cm. The current carries a current of 279 A and it lies in a uniform magnetic field of 3.48 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 6.100E-06 V
 * b) 6.710E-06 V
 * c) 7.381E-06 V
 * d) 8.120E-06 V
 * e) 8.931E-06 V

2) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22&deg; away from the wire?


 * a) 1.062E+00 N/m
 * b) 1.168E+00 N/m
 * c) 1.285E+00 N/m
 * d) 1.413E+00 N/m
 * e) 1.555E+00 N/m

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 2.280E-07 s
 * b) 2.508E-07 s
 * c) 2.759E-07 s
 * d) 3.035E-07 s
 * e) 3.339E-07 s

4) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?


 * a) 5.792E-06 s
 * b) 6.371E-06 s
 * c) 7.008E-06 s
 * d) 7.709E-06 s
 * e) 8.480E-06 s

c11 X2
1) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * a) 2.417E+00 N/m
 * b) 2.659E+00 N/m
 * c) 2.924E+00 N/m
 * d) 3.217E+00 N/m
 * e) 3.539E+00 N/m

2) The silver ribbon shown are a=3.74 cm, b=2.68 cm, and c= 0.415 cm. The current carries a current of 228 A and it lies in a uniform magnetic field of 1.49 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 8.660E-06 V
 * b) 9.526E-06 V
 * c) 1.048E-05 V
 * d) 1.153E-05 V
 * e) 1.268E-05 V

3) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?


 * a) 3.154E-05 s
 * b) 3.470E-05 s
 * c) 3.817E-05 s
 * d) 4.198E-05 s
 * e) 4.618E-05 s

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.453E-07 s
 * b) 4.898E-07 s
 * c) 5.388E-07 s
 * d) 5.927E-07 s
 * e) 6.519E-07 s

c11 Y0
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.21 i + 5.39 j  + 3.81 k) x 104 m/s?


 * a) 4.419E-14 N
 * b) 4.861E-14 N
 * c) 5.347E-14 N
 * d) 5.882E-14 N
 * e) 6.470E-14 N

2) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * a) 1.432E+00 A
 * b) 1.575E+00 A
 * c) 1.732E+00 A
 * d) 1.905E+00 A
 * e) 2.096E+00 A

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.362E+06 m/s
 * b) 1.498E+06 m/s
 * c) 1.647E+06 m/s
 * d) 1.812E+06 m/s
 * e) 1.993E+06 m/s

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.940E-06 s
 * b) 2.134E-06 s
 * c) 2.347E-06 s
 * d) 2.582E-06 s
 * e) 2.840E-06 s

c11 Y1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.676E+06 m/s
 * b) 1.843E+06 m/s
 * c) 2.028E+06 m/s
 * d) 2.230E+06 m/s
 * e) 2.453E+06 m/s

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.16 i + 2.1 j  + 1.74 k) x 104 m/s?


 * a) 4.783E-14 N
 * b) 5.262E-14 N
 * c) 5.788E-14 N
 * d) 6.367E-14 N
 * e) 7.003E-14 N

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.897E-07 s
 * b) 2.087E-07 s
 * c) 2.296E-07 s
 * d) 2.525E-07 s
 * e) 2.778E-07 s

4) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * a) 3.106E-01 A
 * b) 3.416E-01 A
 * c) 3.758E-01 A
 * d) 4.134E-01 A
 * e) 4.547E-01 A

c11 Y2
1) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?


 * a) 1.644E-01 A
 * b) 1.808E-01 A
 * c) 1.989E-01 A
 * d) 2.188E-01 A
 * e) 2.406E-01 A

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * a) 1.070E+06 m/s
 * b) 1.177E+06 m/s
 * c) 1.295E+06 m/s
 * d) 1.424E+06 m/s
 * e) 1.566E+06 m/s

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (8.9 i + 4.27 j  + 7.52 k) x 104 m/s?


 * a) 5.296E-14 N
 * b) 5.826E-14 N
 * c) 6.408E-14 N
 * d) 7.049E-14 N
 * e) 7.754E-14 N

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 2.561E-07 s
 * b) 2.817E-07 s
 * c) 3.099E-07 s
 * d) 3.409E-07 s
 * e) 3.750E-07 s

c11 Z0
1) The silver ribbon shown are a=4.12 cm, b=3.32 cm, and c= 1.46 cm. The current carries a current of 120 A and it lies in a uniform magnetic field of 1.39 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.209E-06 V
 * b) 1.329E-06 V
 * c) 1.462E-06 V
 * d) 1.609E-06 V
 * e) 1.770E-06 V

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0454 T . It emerges after being deflected by 74&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 4.878E-07 s
 * b) 5.366E-07 s
 * c) 5.903E-07 s
 * d) 6.493E-07 s
 * e) 7.143E-07 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * a) 2.875E+00 MeV
 * b) 3.162E+00 MeV
 * c) 3.479E+00 MeV
 * d) 3.827E+00 MeV
 * e) 4.209E+00 MeV

4) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?


 * a) 2.189E-05 s
 * b) 2.408E-05 s
 * c) 2.649E-05 s
 * d) 2.914E-05 s
 * e) 3.205E-05 s

c11 Z1
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?


 * a) 5.342E+00 MeV
 * b) 5.877E+00 MeV
 * c) 6.464E+00 MeV
 * d) 7.111E+00 MeV
 * e) 7.822E+00 MeV

2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?


 * a) 4.543E-06 s
 * b) 4.997E-06 s
 * c) 5.497E-06 s
 * d) 6.046E-06 s
 * e) 6.651E-06 s

3) The silver ribbon shown are a=3.55 cm, b=2.99 cm, and c= 1.03 cm. The current carries a current of 135 A and it lies in a uniform magnetic field of 1.26 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 1.193E-06 V
 * b) 1.313E-06 V
 * c) 1.444E-06 V
 * d) 1.588E-06 V
 * e) 1.747E-06 V

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 1.222E-06 s
 * b) 1.344E-06 s
 * c) 1.479E-06 s
 * d) 1.627E-06 s
 * e) 1.789E-06 s

c11 Z2
1) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?


 * a) 2.730E-06 s
 * b) 3.003E-06 s
 * c) 3.303E-06 s
 * d) 3.633E-06 s
 * e) 3.997E-06 s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69&deg; from its original direction. How much time did it spend in that magnetic field?


 * a) 2.561E-07 s
 * b) 2.817E-07 s
 * c) 3.099E-07 s
 * d) 3.409E-07 s
 * e) 3.750E-07 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?


 * a) 8.491E+00 MeV
 * b) 9.340E+00 MeV
 * c) 1.027E+01 MeV
 * d) 1.130E+01 MeV
 * e) 1.243E+01 MeV

4) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * a) 7.202E-06 V
 * b) 7.922E-06 V
 * c) 8.714E-06 V
 * d) 9.586E-06 V
 * e) 1.054E-05 V


 * 1) blank page
 * 2) blank page
 * 3) blank page
 * 4) blank page
 * 5) blank page
 * 6) blank page
 * 7) blank page
 * 8) blank page
 * 9) blank page
 * 10) blank page
 * 11) blank page
 * 12) blank page
 * 13) blank page
 * 14) blank page
 * 15) blank page
 * 16) blank page
 * 17) blank page
 * 18) blank page
 * 19) blank page
 * 20) blank page


 * 1) of 10 blank lines to separate exams from keys
 * 2) of 10 blank lines to separate exams from keys
 * 3) of 10 blank lines to separate exams from keys
 * 4) of 10 blank lines to separate exams from keys
 * 5) of 10 blank lines to separate exams from keys
 * 6) of 10 blank lines to separate exams from keys
 * 7) of 10 blank lines to separate exams from keys
 * 8) of 10 blank lines to separate exams from keys
 * 9) of 10 blank lines to separate exams from keys
 * 10) of 10 blank lines to separate exams from keys

Key: A0
1) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?


 * -a) 5.076E-01 A
 * +b) 5.584E-01 A
 * -c) 6.142E-01 A
 * -d) 6.757E-01 A
 * -e) 7.432E-01 A

2) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?


 * +a) 1.141E-05 s
 * -b) 1.255E-05 s
 * -c) 1.381E-05 s
 * -d) 1.519E-05 s
 * -e) 1.671E-05 s

3) The silver ribbon shown are a=4.26 cm, b=3.62 cm, and c= 1.5 cm. The current carries a current of 181 A and it lies in a uniform magnetic field of 1.96 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 2.275E-06 V
 * +b) 2.502E-06 V
 * -c) 2.752E-06 V
 * -d) 3.027E-06 V
 * -e) 3.330E-06 V

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 4.629E-07 s
 * -b) 5.092E-07 s
 * -c) 5.601E-07 s
 * +d) 6.161E-07 s
 * -e) 6.777E-07 s

Click these links for the keys:

Key: A1
1) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 7.202E-06 V
 * -b) 7.922E-06 V
 * -c) 8.714E-06 V
 * -d) 9.586E-06 V
 * -e) 1.054E-05 V

2) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?


 * -a) 2.730E-06 s
 * +b) 3.003E-06 s
 * -c) 3.303E-06 s
 * -d) 3.633E-06 s
 * -e) 3.997E-06 s

3) A 97 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.753 T. What current is required to maintain this balance?


 * -a) 7.056E-02 A
 * -b) 7.762E-02 A
 * -c) 8.538E-02 A
 * +d) 9.392E-02 A
 * -e) 1.033E-01 A

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 2.819E-07 s
 * -b) 3.101E-07 s
 * +c) 3.411E-07 s
 * -d) 3.752E-07 s
 * -e) 4.128E-07 s

Click these links for the keys:

Key: A2
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.212E-07 s
 * -b) 1.333E-07 s
 * -c) 1.466E-07 s
 * -d) 1.613E-07 s
 * +e) 1.774E-07 s

2) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 7.202E-06 V
 * -b) 7.922E-06 V
 * -c) 8.714E-06 V
 * -d) 9.586E-06 V
 * -e) 1.054E-05 V

3) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * +a) 1.432E+00 A
 * -b) 1.575E+00 A
 * -c) 1.732E+00 A
 * -d) 1.905E+00 A
 * -e) 2.096E+00 A

4) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?


 * -a) 3.154E-05 s
 * +b) 3.470E-05 s
 * -c) 3.817E-05 s
 * -d) 4.198E-05 s
 * -e) 4.618E-05 s

Click these links for the keys:

Key: B0
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.21 i + 5.39 j  + 3.81 k) x 104 m/s?


 * -a) 4.419E-14 N
 * -b) 4.861E-14 N
 * -c) 5.347E-14 N
 * +d) 5.882E-14 N
 * -e) 6.470E-14 N

2) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.761 T magnetic field is directed 44&deg; away from the wire?


 * -a) 2.527E+00 N/m
 * -b) 2.780E+00 N/m
 * -c) 3.058E+00 N/m
 * -d) 3.364E+00 N/m
 * +e) 3.700E+00 N/m

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * -a) 2.875E+00 MeV
 * -b) 3.162E+00 MeV
 * -c) 3.479E+00 MeV
 * -d) 3.827E+00 MeV
 * +e) 4.209E+00 MeV

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 2.768E+05 m/s
 * -b) 3.045E+05 m/s
 * -c) 3.349E+05 m/s
 * -d) 3.684E+05 m/s
 * +e) 4.052E+05 m/s

Click these links for the keys:

Key: B1
1) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.222 T magnetic field is directed 23&deg; away from the wire?


 * +a) 5.205E-01 N/m
 * -b) 5.725E-01 N/m
 * -c) 6.297E-01 N/m
 * -d) 6.927E-01 N/m
 * -e) 7.620E-01 N/m

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.55 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.96 i + 1.68 j  + 6.92 k) x 104 m/s?


 * -a) 4.179E-14 N
 * +b) 4.596E-14 N
 * -c) 5.056E-14 N
 * -d) 5.562E-14 N
 * -e) 6.118E-14 N

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.145 m and a magneticfield of 1.03 T. What is their maximum kinetic energy?


 * -a) 7.342E-01 MeV
 * -b) 8.076E-01 MeV
 * -c) 8.884E-01 MeV
 * -d) 9.772E-01 MeV
 * +e) 1.075E+00 MeV

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 9.223E+05 m/s
 * +b) 1.015E+06 m/s
 * -c) 1.116E+06 m/s
 * -d) 1.228E+06 m/s
 * -e) 1.350E+06 m/s

Click these links for the keys:

Key: B2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 4.982E+05 m/s
 * -b) 5.480E+05 m/s
 * -c) 6.028E+05 m/s
 * +d) 6.631E+05 m/s
 * -e) 7.294E+05 m/s

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.13 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (5.64 i + 1.93 j  + 8.71 k) x 104 m/s?


 * -a) 1.757E-14 N
 * +b) 1.933E-14 N
 * -c) 2.126E-14 N
 * -d) 2.339E-14 N
 * -e) 2.573E-14 N

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?


 * -a) 1.323E+01 MeV
 * -b) 1.456E+01 MeV
 * +c) 1.601E+01 MeV
 * -d) 1.761E+01 MeV
 * -e) 1.937E+01 MeV

4) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * -a) 2.417E+00 N/m
 * -b) 2.659E+00 N/m
 * -c) 2.924E+00 N/m
 * +d) 3.217E+00 N/m
 * -e) 3.539E+00 N/m

Click these links for the keys:

Key: C0
1) A circular current loop of radius 2.16 cm carries a current of 1.72 mA. What is the magnitude of the torque if the dipole is oriented at 52 &deg; to a uniform magnetic fied of 0.24 T?


 * -a) 3.582E-07 N m
 * -b) 3.940E-07 N m
 * -c) 4.334E-07 N m
 * +d) 4.768E-07 N m
 * -e) 5.245E-07 N m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0393 T . It emerges after being deflected by 49&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 4.105E-07 s
 * +b) 4.515E-07 s
 * -c) 4.967E-07 s
 * -d) 5.464E-07 s
 * -e) 6.010E-07 s

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 5.554E+05 m/s
 * -b) 6.110E+05 m/s
 * -c) 6.720E+05 m/s
 * -d) 7.393E+05 m/s
 * -e) 8.132E+05 m/s

4) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?


 * -a) 3.432E-01 A
 * -b) 3.775E-01 A
 * -c) 4.152E-01 A
 * +d) 4.568E-01 A
 * -e) 5.024E-01 A

Click these links for the keys:

Key: C1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 6.97 mT and 2.240E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 2.656E+05 m/s
 * -b) 2.922E+05 m/s
 * +c) 3.214E+05 m/s
 * -d) 3.535E+05 m/s
 * -e) 3.889E+05 m/s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 1.222E-06 s
 * -b) 1.344E-06 s
 * -c) 1.479E-06 s
 * -d) 1.627E-06 s
 * -e) 1.789E-06 s

3) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 &deg; to a uniform magnetic fied of 0.523 T?


 * -a) 2.699E-06 N m
 * -b) 2.969E-06 N m
 * -c) 3.266E-06 N m
 * -d) 3.593E-06 N m
 * +e) 3.952E-06 N m

4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * -a) 2.225E-01 A
 * -b) 2.448E-01 A
 * +c) 2.692E-01 A
 * -d) 2.962E-01 A
 * -e) 3.258E-01 A

Click these links for the keys:

Key: C2
1) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.408 T?


 * -a) 1.476E-06 N m
 * +b) 1.624E-06 N m
 * -c) 1.786E-06 N m
 * -d) 1.965E-06 N m
 * -e) 2.162E-06 N m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 2.561E-07 s
 * +b) 2.817E-07 s
 * -c) 3.099E-07 s
 * -d) 3.409E-07 s
 * -e) 3.750E-07 s

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 2.768E+05 m/s
 * -b) 3.045E+05 m/s
 * -c) 3.349E+05 m/s
 * -d) 3.684E+05 m/s
 * +e) 4.052E+05 m/s

4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * -a) 2.225E-01 A
 * -b) 2.448E-01 A
 * +c) 2.692E-01 A
 * -d) 2.962E-01 A
 * -e) 3.258E-01 A

Click these links for the keys:

Key: D0
1) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * -a) 1.510E+00 N/m
 * +b) 1.661E+00 N/m
 * -c) 1.827E+00 N/m
 * -d) 2.010E+00 N/m
 * -e) 2.211E+00 N/m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 8.137E-07 s
 * +b) 8.951E-07 s
 * -c) 9.846E-07 s
 * -d) 1.083E-06 s
 * -e) 1.191E-06 s

3) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.174 T?


 * -a) 1.075E-06 N m
 * +b) 1.182E-06 N m
 * -c) 1.301E-06 N m
 * -d) 1.431E-06 N m
 * -e) 1.574E-06 N m

4) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * -a) 2.225E-01 A
 * -b) 2.448E-01 A
 * +c) 2.692E-01 A
 * -d) 2.962E-01 A
 * -e) 3.258E-01 A

Click these links for the keys:

Key: D1
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0775 T . It emerges after being deflected by 73&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 2.819E-07 s
 * -b) 3.101E-07 s
 * +c) 3.411E-07 s
 * -d) 3.752E-07 s
 * -e) 4.128E-07 s

2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 &deg; to a uniform magnetic fied of 0.184 T?


 * +a) 5.610E-07 N m
 * -b) 6.171E-07 N m
 * -c) 6.788E-07 N m
 * -d) 7.467E-07 N m
 * -e) 8.213E-07 N m

3) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * -a) 2.225E-01 A
 * -b) 2.448E-01 A
 * +c) 2.692E-01 A
 * -d) 2.962E-01 A
 * -e) 3.258E-01 A

4) A long rigind wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18&deg; away from the wire?


 * +a) 4.950E-01 N/m
 * -b) 5.445E-01 N/m
 * -c) 5.990E-01 N/m
 * -d) 6.589E-01 N/m
 * -e) 7.248E-01 N/m

Click these links for the keys:

Key: D2
1) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 &deg; to a uniform magnetic fied of 0.523 T?


 * -a) 2.699E-06 N m
 * -b) 2.969E-06 N m
 * -c) 3.266E-06 N m
 * -d) 3.593E-06 N m
 * +e) 3.952E-06 N m

2) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?


 * -a) 3.999E-01 A
 * -b) 4.398E-01 A
 * -c) 4.838E-01 A
 * -d) 5.322E-01 A
 * +e) 5.854E-01 A

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0172 T . It emerges after being deflected by 85&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.627E-06 s
 * +b) 1.790E-06 s
 * -c) 1.969E-06 s
 * -d) 2.166E-06 s
 * -e) 2.382E-06 s

4) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * -a) 1.510E+00 N/m
 * +b) 1.661E+00 N/m
 * -c) 1.827E+00 N/m
 * -d) 2.010E+00 N/m
 * -e) 2.211E+00 N/m

Click these links for the keys:

Key: E0
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 4.791E-07 s
 * -b) 5.271E-07 s
 * -c) 5.798E-07 s
 * -d) 6.377E-07 s
 * -e) 7.015E-07 s

2) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * +a) 1.432E+00 A
 * -b) 1.575E+00 A
 * -c) 1.732E+00 A
 * -d) 1.905E+00 A
 * -e) 2.096E+00 A

3) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?


 * -a) 5.792E-06 s
 * +b) 6.371E-06 s
 * -c) 7.008E-06 s
 * -d) 7.709E-06 s
 * -e) 8.480E-06 s

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (3.84 i + 8.79 j  + 9.05 k) x 104 m/s?


 * -a) 7.509E-14 N
 * -b) 8.259E-14 N
 * +c) 9.085E-14 N
 * -d) 9.994E-14 N
 * -e) 1.099E-13 N

Click these links for the keys:

Key: E1
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.92 i + 1.55 j  + 6.22 k) x 104 m/s?


 * -a) 2.074E-14 N
 * +b) 2.282E-14 N
 * -c) 2.510E-14 N
 * -d) 2.761E-14 N
 * -e) 3.037E-14 N

2) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?


 * -a) 5.076E-01 A
 * +b) 5.584E-01 A
 * -c) 6.142E-01 A
 * -d) 6.757E-01 A
 * -e) 7.432E-01 A

3) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?


 * -a) 3.154E-05 s
 * +b) 3.470E-05 s
 * -c) 3.817E-05 s
 * -d) 4.198E-05 s
 * -e) 4.618E-05 s

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 4.791E-07 s
 * -b) 5.271E-07 s
 * -c) 5.798E-07 s
 * -d) 6.377E-07 s
 * -e) 7.015E-07 s

Click these links for the keys:

Key: E2
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 1.222E-06 s
 * -b) 1.344E-06 s
 * -c) 1.479E-06 s
 * -d) 1.627E-06 s
 * -e) 1.789E-06 s

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (2.85 i + 1.28 j  + 8.49 k) x 104 m/s?


 * -a) 2.222E-14 N
 * -b) 2.444E-14 N
 * -c) 2.688E-14 N
 * +d) 2.957E-14 N
 * -e) 3.253E-14 N

3) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?


 * -a) 2.651E-01 A
 * -b) 2.916E-01 A
 * -c) 3.208E-01 A
 * +d) 3.529E-01 A
 * -e) 3.882E-01 A

4) A charged particle in a magnetic field of 3.330E-04 T is moving perpendicular to the magnetic field with a speed of 4.800E+05 m/s. What is the period of orbit if orbital radius is 0.402 m?


 * -a) 4.784E-06 s
 * +b) 5.262E-06 s
 * -c) 5.788E-06 s
 * -d) 6.367E-06 s
 * -e) 7.004E-06 s

Click these links for the keys:

Key: F0
1) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?


 * -a) 5.076E-01 A
 * +b) 5.584E-01 A
 * -c) 6.142E-01 A
 * -d) 6.757E-01 A
 * -e) 7.432E-01 A

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.011 T . It emerges after being deflected by 70&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 2.095E-06 s
 * +b) 2.305E-06 s
 * -c) 2.535E-06 s
 * -d) 2.789E-06 s
 * -e) 3.067E-06 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?


 * -a) 1.004E+00 MeV
 * -b) 1.104E+00 MeV
 * -c) 1.215E+00 MeV
 * -d) 1.336E+00 MeV
 * +e) 1.470E+00 MeV

4) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73&deg; away from the wire?


 * +a) 3.575E+00 N/m
 * -b) 3.932E+00 N/m
 * -c) 4.325E+00 N/m
 * -d) 4.758E+00 N/m
 * -e) 5.234E+00 N/m

Click these links for the keys:

Key: F1
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 4.629E-07 s
 * -b) 5.092E-07 s
 * -c) 5.601E-07 s
 * +d) 6.161E-07 s
 * -e) 6.777E-07 s

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?


 * -a) 8.491E+00 MeV
 * -b) 9.340E+00 MeV
 * +c) 1.027E+01 MeV
 * -d) 1.130E+01 MeV
 * -e) 1.243E+01 MeV

3) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?


 * -a) 2.259E-01 A
 * -b) 2.485E-01 A
 * +c) 2.734E-01 A
 * -d) 3.007E-01 A
 * -e) 3.308E-01 A

4) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * -a) 6.302E-01 N/m
 * -b) 6.932E-01 N/m
 * +c) 7.625E-01 N/m
 * -d) 8.388E-01 N/m
 * -e) 9.227E-01 N/m

Click these links for the keys:

Key: F2
1) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.88 T magnetic field is directed 47&deg; away from the wire?


 * -a) 4.096E+00 N/m
 * +b) 4.505E+00 N/m
 * -c) 4.956E+00 N/m
 * -d) 5.451E+00 N/m
 * -e) 5.996E+00 N/m

2) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * -a) 3.106E-01 A
 * +b) 3.416E-01 A
 * -c) 3.758E-01 A
 * -d) 4.134E-01 A
 * -e) 4.547E-01 A

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?


 * -a) 2.853E+00 MeV
 * +b) 3.139E+00 MeV
 * -c) 3.453E+00 MeV
 * -d) 3.798E+00 MeV
 * -e) 4.178E+00 MeV

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.940E-06 s
 * -b) 2.134E-06 s
 * -c) 2.347E-06 s
 * +d) 2.582E-06 s
 * -e) 2.840E-06 s

Click these links for the keys:

Key: G0
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (3.84 i + 8.79 j  + 9.05 k) x 104 m/s?


 * -a) 7.509E-14 N
 * -b) 8.259E-14 N
 * +c) 9.085E-14 N
 * -d) 9.994E-14 N
 * -e) 1.099E-13 N

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 4.829E+05 m/s
 * -b) 5.312E+05 m/s
 * -c) 5.843E+05 m/s
 * +d) 6.427E+05 m/s
 * -e) 7.070E+05 m/s

3) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53&deg; away from the wire?


 * -a) 8.520E-01 N/m
 * -b) 9.372E-01 N/m
 * -c) 1.031E+00 N/m
 * +d) 1.134E+00 N/m
 * -e) 1.247E+00 N/m

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0482 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 4.629E-07 s
 * -b) 5.092E-07 s
 * -c) 5.601E-07 s
 * +d) 6.161E-07 s
 * -e) 6.777E-07 s

Click these links for the keys:

Key: G1
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0263 T . It emerges after being deflected by 65&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 8.137E-07 s
 * +b) 8.951E-07 s
 * -c) 9.846E-07 s
 * -d) 1.083E-06 s
 * -e) 1.191E-06 s

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.96 mT and 2.010E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 2.768E+05 m/s
 * -b) 3.045E+05 m/s
 * -c) 3.349E+05 m/s
 * -d) 3.684E+05 m/s
 * +e) 4.052E+05 m/s

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.16 i + 2.1 j  + 1.74 k) x 104 m/s?


 * -a) 4.783E-14 N
 * +b) 5.262E-14 N
 * -c) 5.788E-14 N
 * -d) 6.367E-14 N
 * -e) 7.003E-14 N

4) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.761 T magnetic field is directed 44&deg; away from the wire?


 * -a) 2.527E+00 N/m
 * -b) 2.780E+00 N/m
 * -c) 3.058E+00 N/m
 * -d) 3.364E+00 N/m
 * +e) 3.700E+00 N/m

Click these links for the keys:

Key: G2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 9.23 mT and 6.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 4.982E+05 m/s
 * -b) 5.480E+05 m/s
 * -c) 6.028E+05 m/s
 * +d) 6.631E+05 m/s
 * -e) 7.294E+05 m/s

2) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22&deg; away from the wire?


 * -a) 1.062E+00 N/m
 * -b) 1.168E+00 N/m
 * -c) 1.285E+00 N/m
 * -d) 1.413E+00 N/m
 * +e) 1.555E+00 N/m

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 4.791E-07 s
 * -b) 5.271E-07 s
 * -c) 5.798E-07 s
 * -d) 6.377E-07 s
 * -e) 7.015E-07 s

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.13 i + 3.24 j  + 6.96 k) x 104 m/s?


 * -a) 7.691E-14 N
 * +b) 8.460E-14 N
 * -c) 9.306E-14 N
 * -d) 1.024E-13 N
 * -e) 1.126E-13 N

Click these links for the keys:

Key: H0
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.070E+06 m/s
 * -b) 1.177E+06 m/s
 * -c) 1.295E+06 m/s
 * -d) 1.424E+06 m/s
 * -e) 1.566E+06 m/s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 2.280E-07 s
 * -b) 2.508E-07 s
 * -c) 2.759E-07 s
 * +d) 3.035E-07 s
 * -e) 3.339E-07 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.378 m and a magneticfield of 0.835 T. What is their maximum kinetic energy?


 * -a) 4.365E+00 MeV
 * +b) 4.801E+00 MeV
 * -c) 5.281E+00 MeV
 * -d) 5.809E+00 MeV
 * -e) 6.390E+00 MeV

4) The silver ribbon shown are a=3.89 cm, b=3.43 cm, and c= 1.21 cm. The current carries a current of 77 A and it lies in a uniform magnetic field of 2.16 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.322E-06 V
 * +b) 1.454E-06 V
 * -c) 1.600E-06 V
 * -d) 1.759E-06 V
 * -e) 1.935E-06 V

Click these links for the keys:

Key: H1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 8.092E+05 m/s
 * -b) 8.901E+05 m/s
 * -c) 9.791E+05 m/s
 * -d) 1.077E+06 m/s
 * -e) 1.185E+06 m/s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 4.791E-07 s
 * -b) 5.271E-07 s
 * -c) 5.798E-07 s
 * -d) 6.377E-07 s
 * -e) 7.015E-07 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?


 * -a) 6.534E+00 MeV
 * -b) 7.187E+00 MeV
 * -c) 7.906E+00 MeV
 * +d) 8.697E+00 MeV
 * -e) 9.566E+00 MeV

4) The silver ribbon shown are a=3.6 cm, b=2.68 cm, and c= 1.13 cm. The current carries a current of 97 A and it lies in a uniform magnetic field of 1.89 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.560E-06 V
 * +b) 1.716E-06 V
 * -c) 1.888E-06 V
 * -d) 2.077E-06 V
 * -e) 2.284E-06 V

Click these links for the keys:

Key: H2
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.897E-07 s
 * -b) 2.087E-07 s
 * -c) 2.296E-07 s
 * +d) 2.525E-07 s
 * -e) 2.778E-07 s

2) The silver ribbon shown are a=3.47 cm, b=2.98 cm, and c= 0.681 cm. The current carries a current of 289 A and it lies in a uniform magnetic field of 3.37 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.375E-05 V
 * +b) 1.513E-05 V
 * -c) 1.664E-05 V
 * -d) 1.831E-05 V
 * -e) 2.014E-05 V

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?


 * -a) 7.476E+00 MeV
 * -b) 8.224E+00 MeV
 * -c) 9.046E+00 MeV
 * +d) 9.951E+00 MeV
 * -e) 1.095E+01 MeV

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 6.804E+05 m/s
 * -b) 7.484E+05 m/s
 * -c) 8.233E+05 m/s
 * -d) 9.056E+05 m/s
 * -e) 9.962E+05 m/s

Click these links for the keys:

Key: I0
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0172 T . It emerges after being deflected by 85&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.627E-06 s
 * +b) 1.790E-06 s
 * -c) 1.969E-06 s
 * -d) 2.166E-06 s
 * -e) 2.382E-06 s

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?


 * -a) 5.798E+00 MeV
 * +b) 6.377E+00 MeV
 * -c) 7.015E+00 MeV
 * -d) 7.717E+00 MeV
 * -e) 8.488E+00 MeV

3) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 7.202E-06 V
 * -b) 7.922E-06 V
 * -c) 8.714E-06 V
 * -d) 9.586E-06 V
 * -e) 1.054E-05 V

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 2.746E+06 m/s
 * -b) 3.021E+06 m/s
 * -c) 3.323E+06 m/s
 * -d) 3.655E+06 m/s
 * -e) 4.020E+06 m/s

Click these links for the keys:

Key: I1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 4.829E+05 m/s
 * -b) 5.312E+05 m/s
 * -c) 5.843E+05 m/s
 * +d) 6.427E+05 m/s
 * -e) 7.070E+05 m/s

2) The silver ribbon shown are a=4.14 cm, b=3.69 cm, and c= 1.13 cm. The current carries a current of 291 A and it lies in a uniform magnetic field of 3.32 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 6.795E-06 V
 * -b) 7.475E-06 V
 * -c) 8.222E-06 V
 * +d) 9.045E-06 V
 * -e) 9.949E-06 V

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0279 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 7.270E-07 s
 * -b) 7.997E-07 s
 * -c) 8.797E-07 s
 * -d) 9.676E-07 s
 * +e) 1.064E-06 s

4) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?


 * -a) 5.342E+00 MeV
 * -b) 5.877E+00 MeV
 * -c) 6.464E+00 MeV
 * +d) 7.111E+00 MeV
 * -e) 7.822E+00 MeV

Click these links for the keys:

Key: I2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 6.804E+05 m/s
 * -b) 7.484E+05 m/s
 * -c) 8.233E+05 m/s
 * -d) 9.056E+05 m/s
 * -e) 9.962E+05 m/s

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.295 m and a magneticfield of 1.44 T. What is their maximum kinetic energy?


 * -a) 6.534E+00 MeV
 * -b) 7.187E+00 MeV
 * -c) 7.906E+00 MeV
 * +d) 8.697E+00 MeV
 * -e) 9.566E+00 MeV

3) The silver ribbon shown are a=4.72 cm, b=4.17 cm, and c= 1.53 cm. The current carries a current of 235 A and it lies in a uniform magnetic field of 1.35 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.648E-06 V
 * -b) 1.813E-06 V
 * -c) 1.994E-06 V
 * +d) 2.194E-06 V
 * -e) 2.413E-06 V

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0837 T . It emerges after being deflected by 41&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.212E-07 s
 * -b) 1.333E-07 s
 * -c) 1.466E-07 s
 * -d) 1.613E-07 s
 * +e) 1.774E-07 s

Click these links for the keys:

Key: J0
1) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * -a) 2.417E+00 N/m
 * -b) 2.659E+00 N/m
 * -c) 2.924E+00 N/m
 * +d) 3.217E+00 N/m
 * -e) 3.539E+00 N/m

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?


 * -a) 8.491E+00 MeV
 * -b) 9.340E+00 MeV
 * +c) 1.027E+01 MeV
 * -d) 1.130E+01 MeV
 * -e) 1.243E+01 MeV

3) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 &deg; to a uniform magnetic fied of 0.402 T?


 * +a) 1.022E-06 N m
 * -b) 1.124E-06 N m
 * -c) 1.236E-06 N m
 * -d) 1.360E-06 N m
 * -e) 1.496E-06 N m

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 8.092E+05 m/s
 * -b) 8.901E+05 m/s
 * -c) 9.791E+05 m/s
 * -d) 1.077E+06 m/s
 * -e) 1.185E+06 m/s

Click these links for the keys:

Key: J1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 9.223E+05 m/s
 * +b) 1.015E+06 m/s
 * -c) 1.116E+06 m/s
 * -d) 1.228E+06 m/s
 * -e) 1.350E+06 m/s

2) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * -a) 2.417E+00 N/m
 * -b) 2.659E+00 N/m
 * -c) 2.924E+00 N/m
 * +d) 3.217E+00 N/m
 * -e) 3.539E+00 N/m

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?


 * -a) 6.029E+00 MeV
 * -b) 6.631E+00 MeV
 * -c) 7.295E+00 MeV
 * +d) 8.024E+00 MeV
 * -e) 8.827E+00 MeV

4) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.174 T?


 * -a) 1.075E-06 N m
 * +b) 1.182E-06 N m
 * -c) 1.301E-06 N m
 * -d) 1.431E-06 N m
 * -e) 1.574E-06 N m

Click these links for the keys:

Key: J2
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?


 * -a) 5.342E+00 MeV
 * -b) 5.877E+00 MeV
 * -c) 6.464E+00 MeV
 * +d) 7.111E+00 MeV
 * -e) 7.822E+00 MeV

2) A circular current loop of radius 2.99 cm carries a current of 4.54 mA. What is the magnitude of the torque if the dipole is oriented at 34 &deg; to a uniform magnetic fied of 0.107 T?


 * +a) 7.629E-07 N m
 * -b) 8.392E-07 N m
 * -c) 9.232E-07 N m
 * -d) 1.015E-06 N m
 * -e) 1.117E-06 N m

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 3.132E+05 m/s
 * -b) 3.445E+05 m/s
 * -c) 3.790E+05 m/s
 * -d) 4.169E+05 m/s
 * -e) 4.585E+05 m/s

4) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70&deg; away from the wire?


 * -a) 2.348E+00 N/m
 * -b) 2.583E+00 N/m
 * +c) 2.842E+00 N/m
 * -d) 3.126E+00 N/m
 * -e) 3.438E+00 N/m

Click these links for the keys:

Key: K0
1) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.761 T magnetic field is directed 44&deg; away from the wire?


 * -a) 2.527E+00 N/m
 * -b) 2.780E+00 N/m
 * -c) 3.058E+00 N/m
 * -d) 3.364E+00 N/m
 * +e) 3.700E+00 N/m

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.448 m and a magneticfield of 0.812 T. What is their maximum kinetic energy?


 * -a) 5.798E+00 MeV
 * +b) 6.377E+00 MeV
 * -c) 7.015E+00 MeV
 * -d) 7.717E+00 MeV
 * -e) 8.488E+00 MeV

3) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?


 * +a) 6.626E-01 A
 * -b) 7.289E-01 A
 * -c) 8.018E-01 A
 * -d) 8.819E-01 A
 * -e) 9.701E-01 A

4) A charged particle in a magnetic field of 3.720E-04 T is moving perpendicular to the magnetic field with a speed of 4.780E+05 m/s. What is the period of orbit if orbital radius is 0.868 m?


 * -a) 7.793E-06 s
 * -b) 8.572E-06 s
 * -c) 9.429E-06 s
 * -d) 1.037E-05 s
 * +e) 1.141E-05 s

Click these links for the keys:

Key: K1
1) A 57 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.447 T. What current is required to maintain this balance?


 * -a) 2.225E-01 A
 * -b) 2.448E-01 A
 * +c) 2.692E-01 A
 * -d) 2.962E-01 A
 * -e) 3.258E-01 A

2) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.355 T magnetic field is directed 53&deg; away from the wire?


 * -a) 8.520E-01 N/m
 * -b) 9.372E-01 N/m
 * -c) 1.031E+00 N/m
 * +d) 1.134E+00 N/m
 * -e) 1.247E+00 N/m

3) A charged particle in a magnetic field of 4.910E-04 T is moving perpendicular to the magnetic field with a speed of 3.000E+05 m/s. What is the period of orbit if orbital radius is 0.507 m?


 * +a) 1.062E-05 s
 * -b) 1.168E-05 s
 * -c) 1.285E-05 s
 * -d) 1.413E-05 s
 * -e) 1.555E-05 s

4) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?


 * -a) 1.004E+00 MeV
 * -b) 1.104E+00 MeV
 * -c) 1.215E+00 MeV
 * -d) 1.336E+00 MeV
 * +e) 1.470E+00 MeV

Click these links for the keys:

Key: K2
1) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?


 * -a) 8.713E-06 s
 * -b) 9.584E-06 s
 * -c) 1.054E-05 s
 * +d) 1.160E-05 s
 * -e) 1.276E-05 s

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?


 * -a) 8.881E+00 MeV
 * -b) 9.769E+00 MeV
 * -c) 1.075E+01 MeV
 * -d) 1.182E+01 MeV
 * +e) 1.300E+01 MeV

3) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * +a) 1.432E+00 A
 * -b) 1.575E+00 A
 * -c) 1.732E+00 A
 * -d) 1.905E+00 A
 * -e) 2.096E+00 A

4) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * -a) 1.510E+00 N/m
 * +b) 1.661E+00 N/m
 * -c) 1.827E+00 N/m
 * -d) 2.010E+00 N/m
 * -e) 2.211E+00 N/m

Click these links for the keys:

Key: L0
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.232 m and a magneticfield of 1.1 T. What is their maximum kinetic energy?


 * -a) 2.853E+00 MeV
 * +b) 3.139E+00 MeV
 * -c) 3.453E+00 MeV
 * -d) 3.798E+00 MeV
 * -e) 4.178E+00 MeV

2) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53&deg; away from the wire?


 * -a) 1.001E+00 N/m
 * -b) 1.101E+00 N/m
 * +c) 1.211E+00 N/m
 * -d) 1.332E+00 N/m
 * -e) 1.465E+00 N/m

3) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?


 * +a) 1.141E-05 s
 * -b) 1.255E-05 s
 * -c) 1.381E-05 s
 * -d) 1.519E-05 s
 * -e) 1.671E-05 s

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.97 i + 8.52 j  + 9.46 k) x 104 m/s?


 * -a) 2.199E-13 N
 * -b) 2.419E-13 N
 * +c) 2.661E-13 N
 * -d) 2.927E-13 N
 * -e) 3.220E-13 N

Click these links for the keys:

Key: L1
1) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.504 T magnetic field is directed 70&deg; away from the wire?


 * -a) 2.348E+00 N/m
 * -b) 2.583E+00 N/m
 * +c) 2.842E+00 N/m
 * -d) 3.126E+00 N/m
 * -e) 3.438E+00 N/m

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (2.85 i + 1.28 j  + 8.49 k) x 104 m/s?


 * -a) 2.222E-14 N
 * -b) 2.444E-14 N
 * -c) 2.688E-14 N
 * +d) 2.957E-14 N
 * -e) 3.253E-14 N

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * -a) 2.875E+00 MeV
 * -b) 3.162E+00 MeV
 * -c) 3.479E+00 MeV
 * -d) 3.827E+00 MeV
 * +e) 4.209E+00 MeV

4) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?


 * +a) 7.327E-06 s
 * -b) 8.060E-06 s
 * -c) 8.865E-06 s
 * -d) 9.752E-06 s
 * -e) 1.073E-05 s

Click these links for the keys:

Key: L2
1) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22&deg; away from the wire?


 * -a) 1.062E+00 N/m
 * -b) 1.168E+00 N/m
 * -c) 1.285E+00 N/m
 * -d) 1.413E+00 N/m
 * +e) 1.555E+00 N/m

2) A charged particle in a magnetic field of 3.600E-04 T is moving perpendicular to the magnetic field with a speed of 5.960E+05 m/s. What is the period of orbit if orbital radius is 0.397 m?


 * -a) 3.805E-06 s
 * +b) 4.185E-06 s
 * -c) 4.604E-06 s
 * -d) 5.064E-06 s
 * -e) 5.571E-06 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?


 * -a) 1.336E+01 MeV
 * -b) 1.470E+01 MeV
 * -c) 1.617E+01 MeV
 * +d) 1.779E+01 MeV
 * -e) 1.957E+01 MeV

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 1.21 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (2.75 i + 9.06 j  + 3.5 k) x 104 m/s?


 * -a) 2.899E-14 N
 * -b) 3.189E-14 N
 * +c) 3.508E-14 N
 * -d) 3.859E-14 N
 * -e) 4.245E-14 N

Click these links for the keys:

Key: M0
1) A circular current loop of radius 1.88 cm carries a current of 3.41 mA. What is the magnitude of the torque if the dipole is oriented at 62 &deg; to a uniform magnetic fied of 0.415 T?


 * +a) 1.387E-06 N m
 * -b) 1.526E-06 N m
 * -c) 1.679E-06 N m
 * -d) 1.847E-06 N m
 * -e) 2.031E-06 N m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.940E-06 s
 * -b) 2.134E-06 s
 * -c) 2.347E-06 s
 * +d) 2.582E-06 s
 * -e) 2.840E-06 s

3) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?


 * -a) 2.596E-01 A
 * -b) 2.855E-01 A
 * +c) 3.141E-01 A
 * -d) 3.455E-01 A
 * -e) 3.801E-01 A

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.13 i + 3.24 j  + 6.96 k) x 104 m/s?


 * -a) 7.691E-14 N
 * +b) 8.460E-14 N
 * -c) 9.306E-14 N
 * -d) 1.024E-13 N
 * -e) 1.126E-13 N

Click these links for the keys:

Key: M1
1) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0327 T . It emerges after being deflected by 89&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 9.857E-07 s
 * -b) 1.084E-06 s
 * -c) 1.193E-06 s
 * -d) 1.312E-06 s
 * -e) 1.443E-06 s

2) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?


 * +a) 6.626E-01 A
 * -b) 7.289E-01 A
 * -c) 8.018E-01 A
 * -d) 8.819E-01 A
 * -e) 9.701E-01 A

3) A circular current loop of radius 1.63 cm carries a current of 2.38 mA. What is the magnitude of the torque if the dipole is oriented at 54 &deg; to a uniform magnetic fied of 0.125 T?


 * +a) 2.009E-07 N m
 * -b) 2.210E-07 N m
 * -c) 2.431E-07 N m
 * -d) 2.674E-07 N m
 * -e) 2.941E-07 N m

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.97 i + 8.52 j  + 9.46 k) x 104 m/s?


 * -a) 2.199E-13 N
 * -b) 2.419E-13 N
 * +c) 2.661E-13 N
 * -d) 2.927E-13 N
 * -e) 3.220E-13 N

Click these links for the keys:

Key: M2
1) A circular current loop of radius 1.67 cm carries a current of 3.81 mA. What is the magnitude of the torque if the dipole is oriented at 40 &deg; to a uniform magnetic fied of 0.884 T?


 * -a) 1.568E-06 N m
 * -b) 1.724E-06 N m
 * +c) 1.897E-06 N m
 * -d) 2.087E-06 N m
 * -e) 2.295E-06 N m

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 4.453E-07 s
 * -b) 4.898E-07 s
 * -c) 5.388E-07 s
 * -d) 5.927E-07 s
 * -e) 6.519E-07 s

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.62 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.7 i + 2.31 j  + 7.08 k) x 104 m/s?


 * -a) 1.828E-14 N
 * -b) 2.010E-14 N
 * -c) 2.211E-14 N
 * -d) 2.433E-14 N
 * +e) 2.676E-14 N

4) A 34 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.348 T. What current is required to maintain this balance?


 * +a) 6.626E-01 A
 * -b) 7.289E-01 A
 * -c) 8.018E-01 A
 * -d) 8.819E-01 A
 * -e) 9.701E-01 A

Click these links for the keys:

Key: N0
1) The silver ribbon shown are a=3.32 cm, b=2.81 cm, and c= 0.996 cm. The current carries a current of 121 A and it lies in a uniform magnetic field of 1.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.080E-06 V
 * -b) 1.188E-06 V
 * -c) 1.306E-06 V
 * -d) 1.437E-06 V
 * +e) 1.581E-06 V

2) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65&deg; away from the wire?


 * -a) 4.908E+00 N/m
 * +b) 5.399E+00 N/m
 * -c) 5.939E+00 N/m
 * -d) 6.533E+00 N/m
 * -e) 7.186E+00 N/m

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.13 i + 3.24 j  + 6.96 k) x 104 m/s?


 * -a) 7.691E-14 N
 * +b) 8.460E-14 N
 * -c) 9.306E-14 N
 * -d) 1.024E-13 N
 * -e) 1.126E-13 N

4) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * -a) 3.106E-01 A
 * +b) 3.416E-01 A
 * -c) 3.758E-01 A
 * -d) 4.134E-01 A
 * -e) 4.547E-01 A

Click these links for the keys:

Key: N1
1) The silver ribbon shown are a=3.68 cm, b=2.66 cm, and c= 0.505 cm. The current carries a current of 113 A and it lies in a uniform magnetic field of 3.12 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 6.104E-06 V
 * -b) 6.714E-06 V
 * +c) 7.385E-06 V
 * -d) 8.124E-06 V
 * -e) 8.936E-06 V

2) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * -a) 2.417E+00 N/m
 * -b) 2.659E+00 N/m
 * -c) 2.924E+00 N/m
 * +d) 3.217E+00 N/m
 * -e) 3.539E+00 N/m

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 8.16 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.13 i + 3.24 j  + 6.96 k) x 104 m/s?


 * -a) 7.691E-14 N
 * +b) 8.460E-14 N
 * -c) 9.306E-14 N
 * -d) 1.024E-13 N
 * -e) 1.126E-13 N

4) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?


 * -a) 1.644E-01 A
 * -b) 1.808E-01 A
 * +c) 1.989E-01 A
 * -d) 2.188E-01 A
 * -e) 2.406E-01 A

Click these links for the keys:

Key: N2
1) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * -a) 1.510E+00 N/m
 * +b) 1.661E+00 N/m
 * -c) 1.827E+00 N/m
 * -d) 2.010E+00 N/m
 * -e) 2.211E+00 N/m

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.21 i + 5.39 j  + 3.81 k) x 104 m/s?


 * -a) 4.419E-14 N
 * -b) 4.861E-14 N
 * -c) 5.347E-14 N
 * +d) 5.882E-14 N
 * -e) 6.470E-14 N

3) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 7.202E-06 V
 * -b) 7.922E-06 V
 * -c) 8.714E-06 V
 * -d) 9.586E-06 V
 * -e) 1.054E-05 V

4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?


 * -a) 2.596E-01 A
 * -b) 2.855E-01 A
 * +c) 3.141E-01 A
 * -d) 3.455E-01 A
 * -e) 3.801E-01 A

Click these links for the keys:

Key: O0
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 6.97 mT and 2.240E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 2.656E+05 m/s
 * -b) 2.922E+05 m/s
 * +c) 3.214E+05 m/s
 * -d) 3.535E+05 m/s
 * -e) 3.889E+05 m/s

2) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?


 * +a) 6.080E-06 s
 * -b) 6.688E-06 s
 * -c) 7.356E-06 s
 * -d) 8.092E-06 s
 * -e) 8.901E-06 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.419 m and a magneticfield of 1.45 T. What is their maximum kinetic energy?


 * -a) 1.336E+01 MeV
 * -b) 1.470E+01 MeV
 * -c) 1.617E+01 MeV
 * +d) 1.779E+01 MeV
 * -e) 1.957E+01 MeV

4) The silver ribbon shown are a=4.14 cm, b=3.69 cm, and c= 1.13 cm. The current carries a current of 291 A and it lies in a uniform magnetic field of 3.32 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 6.795E-06 V
 * -b) 7.475E-06 V
 * -c) 8.222E-06 V
 * +d) 9.045E-06 V
 * -e) 9.949E-06 V

Click these links for the keys:

Key: O1
1) The silver ribbon shown are a=3.96 cm, b=3.35 cm, and c= 1.07 cm. The current carries a current of 295 A and it lies in a uniform magnetic field of 3.4 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 9.015E-06 V
 * +b) 9.916E-06 V
 * -c) 1.091E-05 V
 * -d) 1.200E-05 V
 * -e) 1.320E-05 V

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.355 m and a magneticfield of 1.28 T. What is their maximum kinetic energy?


 * -a) 7.476E+00 MeV
 * -b) 8.224E+00 MeV
 * -c) 9.046E+00 MeV
 * +d) 9.951E+00 MeV
 * -e) 1.095E+01 MeV

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.88 mT and 7.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.504E+06 m/s
 * -b) 1.655E+06 m/s
 * -c) 1.820E+06 m/s
 * -d) 2.002E+06 m/s
 * -e) 2.202E+06 m/s

4) A charged particle in a magnetic field of 2.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.120E+05 m/s. What is the period of orbit if orbital radius is 0.385 m?


 * +a) 1.141E-05 s
 * -b) 1.255E-05 s
 * -c) 1.381E-05 s
 * -d) 1.519E-05 s
 * -e) 1.671E-05 s

Click these links for the keys:

Key: O2
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?


 * -a) 8.881E+00 MeV
 * -b) 9.769E+00 MeV
 * -c) 1.075E+01 MeV
 * -d) 1.182E+01 MeV
 * +e) 1.300E+01 MeV

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.85 mT and 3.760E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 4.829E+05 m/s
 * -b) 5.312E+05 m/s
 * -c) 5.843E+05 m/s
 * +d) 6.427E+05 m/s
 * -e) 7.070E+05 m/s

3) The silver ribbon shown are a=4.12 cm, b=3.32 cm, and c= 1.46 cm. The current carries a current of 120 A and it lies in a uniform magnetic field of 1.39 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 1.209E-06 V
 * -b) 1.329E-06 V
 * -c) 1.462E-06 V
 * -d) 1.609E-06 V
 * -e) 1.770E-06 V

4) A charged particle in a magnetic field of 5.500E-04 T is moving perpendicular to the magnetic field with a speed of 2.930E+05 m/s. What is the period of orbit if orbital radius is 0.787 m?


 * +a) 1.688E-05 s
 * -b) 1.856E-05 s
 * -c) 2.042E-05 s
 * -d) 2.246E-05 s
 * -e) 2.471E-05 s

Click these links for the keys:

Key: P0
1) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 &deg; to a uniform magnetic fied of 0.402 T?


 * +a) 1.022E-06 N m
 * -b) 1.124E-06 N m
 * -c) 1.236E-06 N m
 * -d) 1.360E-06 N m
 * -e) 1.496E-06 N m

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.04 mT and 7.820E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 1.060E+06 m/s
 * -b) 1.166E+06 m/s
 * -c) 1.282E+06 m/s
 * -d) 1.411E+06 m/s
 * +e) 1.552E+06 m/s

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 6.96 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (7.01 i + 5.35 j  + 2.07 k) x 104 m/s?


 * +a) 1.192E-13 N
 * -b) 1.311E-13 N
 * -c) 1.442E-13 N
 * -d) 1.586E-13 N
 * -e) 1.745E-13 N

4) The silver ribbon shown are a=4.14 cm, b=3.69 cm, and c= 1.13 cm. The current carries a current of 291 A and it lies in a uniform magnetic field of 3.32 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 6.795E-06 V
 * -b) 7.475E-06 V
 * -c) 8.222E-06 V
 * +d) 9.045E-06 V
 * -e) 9.949E-06 V

Click these links for the keys:

Key: P1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.362E+06 m/s
 * -b) 1.498E+06 m/s
 * -c) 1.647E+06 m/s
 * -d) 1.812E+06 m/s
 * -e) 1.993E+06 m/s

2) A circular current loop of radius 1.59 cm carries a current of 1.13 mA. What is the magnitude of the torque if the dipole is oriented at 41 &deg; to a uniform magnetic fied of 0.189 T?


 * +a) 1.113E-07 N m
 * -b) 1.224E-07 N m
 * -c) 1.347E-07 N m
 * -d) 1.481E-07 N m
 * -e) 1.629E-07 N m

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.97 i + 8.52 j  + 9.46 k) x 104 m/s?


 * -a) 2.199E-13 N
 * -b) 2.419E-13 N
 * +c) 2.661E-13 N
 * -d) 2.927E-13 N
 * -e) 3.220E-13 N

4) The silver ribbon shown are a=4.65 cm, b=3.43 cm, and c= 1.15 cm. The current carries a current of 279 A and it lies in a uniform magnetic field of 3.48 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 6.100E-06 V
 * -b) 6.710E-06 V
 * -c) 7.381E-06 V
 * -d) 8.120E-06 V
 * +e) 8.931E-06 V

Click these links for the keys:

Key: P2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 5.554E+05 m/s
 * -b) 6.110E+05 m/s
 * -c) 6.720E+05 m/s
 * -d) 7.393E+05 m/s
 * -e) 8.132E+05 m/s

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.21 i + 5.39 j  + 3.81 k) x 104 m/s?


 * -a) 4.419E-14 N
 * -b) 4.861E-14 N
 * -c) 5.347E-14 N
 * +d) 5.882E-14 N
 * -e) 6.470E-14 N

3) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 &deg; to a uniform magnetic fied of 0.523 T?


 * -a) 2.699E-06 N m
 * -b) 2.969E-06 N m
 * -c) 3.266E-06 N m
 * -d) 3.593E-06 N m
 * +e) 3.952E-06 N m

4) The silver ribbon shown are a=4.26 cm, b=3.62 cm, and c= 1.5 cm. The current carries a current of 181 A and it lies in a uniform magnetic field of 1.96 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 2.275E-06 V
 * +b) 2.502E-06 V
 * -c) 2.752E-06 V
 * -d) 3.027E-06 V
 * -e) 3.330E-06 V

Click these links for the keys:

Key: Q0
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.362E+06 m/s
 * -b) 1.498E+06 m/s
 * -c) 1.647E+06 m/s
 * -d) 1.812E+06 m/s
 * -e) 1.993E+06 m/s

2) The silver ribbon shown are a=3.89 cm, b=3.43 cm, and c= 1.21 cm. The current carries a current of 77 A and it lies in a uniform magnetic field of 2.16 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.322E-06 V
 * +b) 1.454E-06 V
 * -c) 1.600E-06 V
 * -d) 1.759E-06 V
 * -e) 1.935E-06 V

3) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?


 * -a) 2.651E-01 A
 * -b) 2.916E-01 A
 * -c) 3.208E-01 A
 * +d) 3.529E-01 A
 * -e) 3.882E-01 A

4) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26&deg; away from the wire?


 * -a) 3.840E-01 N/m
 * -b) 4.224E-01 N/m
 * +c) 4.647E-01 N/m
 * -d) 5.111E-01 N/m
 * -e) 5.623E-01 N/m

Click these links for the keys:

Key: Q1
1) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.61 T magnetic field is directed 33&deg; away from the wire?


 * -a) 1.510E+00 N/m
 * +b) 1.661E+00 N/m
 * -c) 1.827E+00 N/m
 * -d) 2.010E+00 N/m
 * -e) 2.211E+00 N/m

2) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * -a) 3.106E-01 A
 * +b) 3.416E-01 A
 * -c) 3.758E-01 A
 * -d) 4.134E-01 A
 * -e) 4.547E-01 A

3) The silver ribbon shown are a=3.89 cm, b=2.94 cm, and c= 0.58 cm. The current carries a current of 242 A and it lies in a uniform magnetic field of 2.47 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 9.911E-06 V
 * +b) 1.090E-05 V
 * -c) 1.199E-05 V
 * -d) 1.319E-05 V
 * -e) 1.451E-05 V

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.362E+06 m/s
 * -b) 1.498E+06 m/s
 * -c) 1.647E+06 m/s
 * -d) 1.812E+06 m/s
 * -e) 1.993E+06 m/s

Click these links for the keys:

Key: Q2
1) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53&deg; away from the wire?


 * -a) 1.001E+00 N/m
 * -b) 1.101E+00 N/m
 * +c) 1.211E+00 N/m
 * -d) 1.332E+00 N/m
 * -e) 1.465E+00 N/m

2) The silver ribbon shown are a=3.89 cm, b=3.43 cm, and c= 1.21 cm. The current carries a current of 77 A and it lies in a uniform magnetic field of 2.16 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.322E-06 V
 * +b) 1.454E-06 V
 * -c) 1.600E-06 V
 * -d) 1.759E-06 V
 * -e) 1.935E-06 V

3) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * -a) 3.106E-01 A
 * +b) 3.416E-01 A
 * -c) 3.758E-01 A
 * -d) 4.134E-01 A
 * -e) 4.547E-01 A

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.34 mT and 7.430E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 1.671E+06 m/s
 * -b) 1.838E+06 m/s
 * -c) 2.022E+06 m/s
 * +d) 2.225E+06 m/s
 * -e) 2.447E+06 m/s

Click these links for the keys:

Key: R0
1) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * -a) 6.302E-01 N/m
 * -b) 6.932E-01 N/m
 * +c) 7.625E-01 N/m
 * -d) 8.388E-01 N/m
 * -e) 9.227E-01 N/m

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 7.67 mT and 4.260E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 5.554E+05 m/s
 * -b) 6.110E+05 m/s
 * -c) 6.720E+05 m/s
 * -d) 7.393E+05 m/s
 * -e) 8.132E+05 m/s

3) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 &deg; to a uniform magnetic fied of 0.156 T?


 * -a) 1.903E-07 N m
 * -b) 2.093E-07 N m
 * +c) 2.302E-07 N m
 * -d) 2.532E-07 N m
 * -e) 2.785E-07 N m

4) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?


 * -a) 2.596E-01 A
 * -b) 2.855E-01 A
 * +c) 3.141E-01 A
 * -d) 3.455E-01 A
 * -e) 3.801E-01 A

Click these links for the keys:

Key: R1
1) A 33 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.869 T. What current is required to maintain this balance?


 * -a) 2.259E-01 A
 * -b) 2.485E-01 A
 * +c) 2.734E-01 A
 * -d) 3.007E-01 A
 * -e) 3.308E-01 A

2) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.265 T magnetic field is directed 26&deg; away from the wire?


 * -a) 3.840E-01 N/m
 * -b) 4.224E-01 N/m
 * +c) 4.647E-01 N/m
 * -d) 5.111E-01 N/m
 * -e) 5.623E-01 N/m

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 1.85 mT and 5.080E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 2.746E+06 m/s
 * -b) 3.021E+06 m/s
 * -c) 3.323E+06 m/s
 * -d) 3.655E+06 m/s
 * -e) 4.020E+06 m/s

4) A circular current loop of radius 2.84 cm carries a current of 3.01 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.174 T?


 * -a) 1.075E-06 N m
 * +b) 1.182E-06 N m
 * -c) 1.301E-06 N m
 * -d) 1.431E-06 N m
 * -e) 1.574E-06 N m

Click these links for the keys:

Key: R2
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.676E+06 m/s
 * -b) 1.843E+06 m/s
 * -c) 2.028E+06 m/s
 * -d) 2.230E+06 m/s
 * -e) 2.453E+06 m/s

2) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?


 * -a) 1.644E-01 A
 * -b) 1.808E-01 A
 * +c) 1.989E-01 A
 * -d) 2.188E-01 A
 * -e) 2.406E-01 A

3) A circular current loop of radius 3.25 cm carries a current of 2.78 mA. What is the magnitude of the torque if the dipole is oriented at 55 &deg; to a uniform magnetic fied of 0.523 T?


 * -a) 2.699E-06 N m
 * -b) 2.969E-06 N m
 * -c) 3.266E-06 N m
 * -d) 3.593E-06 N m
 * +e) 3.952E-06 N m

4) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * -a) 6.302E-01 N/m
 * -b) 6.932E-01 N/m
 * +c) 7.625E-01 N/m
 * -d) 8.388E-01 N/m
 * -e) 9.227E-01 N/m

Click these links for the keys:

Key: S0
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.413 m and a magneticfield of 0.988 T. What is their maximum kinetic energy?


 * -a) 6.029E+00 MeV
 * -b) 6.631E+00 MeV
 * -c) 7.295E+00 MeV
 * +d) 8.024E+00 MeV
 * -e) 8.827E+00 MeV

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.49 mT and 5.570E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * -a) 9.223E+05 m/s
 * +b) 1.015E+06 m/s
 * -c) 1.116E+06 m/s
 * -d) 1.228E+06 m/s
 * -e) 1.350E+06 m/s

3) The silver ribbon shown are a=4.12 cm, b=3.32 cm, and c= 1.46 cm. The current carries a current of 120 A and it lies in a uniform magnetic field of 1.39 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 1.209E-06 V
 * -b) 1.329E-06 V
 * -c) 1.462E-06 V
 * -d) 1.609E-06 V
 * -e) 1.770E-06 V

4) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65&deg; away from the wire?


 * -a) 4.908E+00 N/m
 * +b) 5.399E+00 N/m
 * -c) 5.939E+00 N/m
 * -d) 6.533E+00 N/m
 * -e) 7.186E+00 N/m

Click these links for the keys:

Key: S1
1) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.893 T magnetic field is directed 66&deg; away from the wire?


 * -a) 2.697E+00 N/m
 * -b) 2.967E+00 N/m
 * +c) 3.263E+00 N/m
 * -d) 3.590E+00 N/m
 * -e) 3.948E+00 N/m

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * -a) 2.875E+00 MeV
 * -b) 3.162E+00 MeV
 * -c) 3.479E+00 MeV
 * -d) 3.827E+00 MeV
 * +e) 4.209E+00 MeV

3) The silver ribbon shown are a=3.68 cm, b=2.66 cm, and c= 0.505 cm. The current carries a current of 113 A and it lies in a uniform magnetic field of 3.12 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 6.104E-06 V
 * -b) 6.714E-06 V
 * +c) 7.385E-06 V
 * -d) 8.124E-06 V
 * -e) 8.936E-06 V

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.13 mT and 2.810E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 6.804E+05 m/s
 * -b) 7.484E+05 m/s
 * -c) 8.233E+05 m/s
 * -d) 9.056E+05 m/s
 * -e) 9.962E+05 m/s

Click these links for the keys:

Key: S2
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.118 m and a magneticfield of 1.48 T. What is their maximum kinetic energy?


 * -a) 1.004E+00 MeV
 * -b) 1.104E+00 MeV
 * -c) 1.215E+00 MeV
 * -d) 1.336E+00 MeV
 * +e) 1.470E+00 MeV

2) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * -a) 6.302E-01 N/m
 * -b) 6.932E-01 N/m
 * +c) 7.625E-01 N/m
 * -d) 8.388E-01 N/m
 * -e) 9.227E-01 N/m

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.070E+06 m/s
 * -b) 1.177E+06 m/s
 * -c) 1.295E+06 m/s
 * -d) 1.424E+06 m/s
 * -e) 1.566E+06 m/s

4) The silver ribbon shown are a=4.12 cm, b=3.32 cm, and c= 1.46 cm. The current carries a current of 120 A and it lies in a uniform magnetic field of 1.39 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 1.209E-06 V
 * -b) 1.329E-06 V
 * -c) 1.462E-06 V
 * -d) 1.609E-06 V
 * -e) 1.770E-06 V

Click these links for the keys:

Key: T0
1) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?


 * -a) 2.730E-06 s
 * +b) 3.003E-06 s
 * -c) 3.303E-06 s
 * -d) 3.633E-06 s
 * -e) 3.997E-06 s

2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 &deg; to a uniform magnetic fied of 0.184 T?


 * +a) 5.610E-07 N m
 * -b) 6.171E-07 N m
 * -c) 6.788E-07 N m
 * -d) 7.467E-07 N m
 * -e) 8.213E-07 N m

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.62 mT and 2.120E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 8.092E+05 m/s
 * -b) 8.901E+05 m/s
 * -c) 9.791E+05 m/s
 * -d) 1.077E+06 m/s
 * -e) 1.185E+06 m/s

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.91 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (4.96 i + 6.81 j  + 8.66 k) x 104 m/s?


 * -a) 9.727E-14 N
 * +b) 1.070E-13 N
 * -c) 1.177E-13 N
 * -d) 1.295E-13 N
 * -e) 1.424E-13 N

Click these links for the keys:

Key: T1
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.23 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (3.84 i + 8.79 j  + 9.05 k) x 104 m/s?


 * -a) 7.509E-14 N
 * -b) 8.259E-14 N
 * +c) 9.085E-14 N
 * -d) 9.994E-14 N
 * -e) 1.099E-13 N

2) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?


 * -a) 2.189E-05 s
 * +b) 2.408E-05 s
 * -c) 2.649E-05 s
 * -d) 2.914E-05 s
 * -e) 3.205E-05 s

3) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 &deg; to a uniform magnetic fied of 0.276 T?


 * -a) 4.188E-07 N m
 * -b) 4.607E-07 N m
 * -c) 5.068E-07 N m
 * +d) 5.574E-07 N m
 * -e) 6.132E-07 N m

4) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 5.46 mT and 1.710E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 3.132E+05 m/s
 * -b) 3.445E+05 m/s
 * -c) 3.790E+05 m/s
 * -d) 4.169E+05 m/s
 * -e) 4.585E+05 m/s

Click these links for the keys:

Key: T2
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.91 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (4.96 i + 6.81 j  + 8.66 k) x 104 m/s?


 * -a) 9.727E-14 N
 * +b) 1.070E-13 N
 * -c) 1.177E-13 N
 * -d) 1.295E-13 N
 * -e) 1.424E-13 N

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.362E+06 m/s
 * -b) 1.498E+06 m/s
 * -c) 1.647E+06 m/s
 * -d) 1.812E+06 m/s
 * -e) 1.993E+06 m/s

3) A circular current loop of radius 3.0 cm carries a current of 1.58 mA. What is the magnitude of the torque if the dipole is oriented at 63 &deg; to a uniform magnetic fied of 0.408 T?


 * -a) 1.476E-06 N m
 * +b) 1.624E-06 N m
 * -c) 1.786E-06 N m
 * -d) 1.965E-06 N m
 * -e) 2.162E-06 N m

4) A charged particle in a magnetic field of 3.600E-04 T is moving perpendicular to the magnetic field with a speed of 5.960E+05 m/s. What is the period of orbit if orbital radius is 0.397 m?


 * -a) 3.805E-06 s
 * +b) 4.185E-06 s
 * -c) 4.604E-06 s
 * -d) 5.064E-06 s
 * -e) 5.571E-06 s

Click these links for the keys:

Key: U0
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?


 * -a) 5.342E+00 MeV
 * -b) 5.877E+00 MeV
 * -c) 6.464E+00 MeV
 * +d) 7.111E+00 MeV
 * -e) 7.822E+00 MeV

2) A 25 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.702 T. What current is required to maintain this balance?


 * -a) 5.076E-01 A
 * +b) 5.584E-01 A
 * -c) 6.142E-01 A
 * -d) 6.757E-01 A
 * -e) 7.432E-01 A

3) The silver ribbon shown are a=3.89 cm, b=3.43 cm, and c= 1.21 cm. The current carries a current of 77 A and it lies in a uniform magnetic field of 2.16 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.322E-06 V
 * +b) 1.454E-06 V
 * -c) 1.600E-06 V
 * -d) 1.759E-06 V
 * -e) 1.935E-06 V

4) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.22 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (2.85 i + 1.28 j  + 8.49 k) x 104 m/s?


 * -a) 2.222E-14 N
 * -b) 2.444E-14 N
 * -c) 2.688E-14 N
 * +d) 2.957E-14 N
 * -e) 3.253E-14 N

Click these links for the keys:

Key: U1
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.409 m and a magneticfield of 1.27 T. What is their maximum kinetic energy?


 * -a) 8.881E+00 MeV
 * -b) 9.769E+00 MeV
 * -c) 1.075E+01 MeV
 * -d) 1.182E+01 MeV
 * +e) 1.300E+01 MeV

2) The silver ribbon shown are a=3.84 cm, b=3.45 cm, and c= 1.38 cm. The current carries a current of 92 A and it lies in a uniform magnetic field of 1.35 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 7.153E-07 V
 * -b) 7.869E-07 V
 * -c) 8.655E-07 V
 * +d) 9.521E-07 V
 * -e) 1.047E-06 V

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.6 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (1.92 i + 1.55 j  + 6.22 k) x 104 m/s?


 * -a) 2.074E-14 N
 * +b) 2.282E-14 N
 * -c) 2.510E-14 N
 * -d) 2.761E-14 N
 * -e) 3.037E-14 N

4) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * +a) 1.432E+00 A
 * -b) 1.575E+00 A
 * -c) 1.732E+00 A
 * -d) 1.905E+00 A
 * -e) 2.096E+00 A

Click these links for the keys:

Key: U2
1) A 62 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.351 T. What current is required to maintain this balance?


 * -a) 3.999E-01 A
 * -b) 4.398E-01 A
 * -c) 4.838E-01 A
 * -d) 5.322E-01 A
 * +e) 5.854E-01 A

2) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 7.202E-06 V
 * -b) 7.922E-06 V
 * -c) 8.714E-06 V
 * -d) 9.586E-06 V
 * -e) 1.054E-05 V

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 9.76 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.97 i + 8.52 j  + 9.46 k) x 104 m/s?


 * -a) 2.199E-13 N
 * -b) 2.419E-13 N
 * +c) 2.661E-13 N
 * -d) 2.927E-13 N
 * -e) 3.220E-13 N

4) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * -a) 2.875E+00 MeV
 * -b) 3.162E+00 MeV
 * -c) 3.479E+00 MeV
 * -d) 3.827E+00 MeV
 * +e) 4.209E+00 MeV

Click these links for the keys:

Key: V0
1) A 96 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 10 g, and the magnitude of the magnetic field is 0.325 T. What current is required to maintain this balance?


 * -a) 2.596E-01 A
 * -b) 2.855E-01 A
 * +c) 3.141E-01 A
 * -d) 3.455E-01 A
 * -e) 3.801E-01 A

2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?


 * -a) 4.543E-06 s
 * -b) 4.997E-06 s
 * -c) 5.497E-06 s
 * -d) 6.046E-06 s
 * +e) 6.651E-06 s

3) The silver ribbon shown are a=4.65 cm, b=3.43 cm, and c= 1.15 cm. The current carries a current of 279 A and it lies in a uniform magnetic field of 3.48 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 6.100E-06 V
 * -b) 6.710E-06 V
 * -c) 7.381E-06 V
 * -d) 8.120E-06 V
 * +e) 8.931E-06 V

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.940E-06 s
 * -b) 2.134E-06 s
 * -c) 2.347E-06 s
 * +d) 2.582E-06 s
 * -e) 2.840E-06 s

Click these links for the keys:

Key: V1
1) The silver ribbon shown are a=3.74 cm, b=2.68 cm, and c= 0.415 cm. The current carries a current of 228 A and it lies in a uniform magnetic field of 1.49 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 8.660E-06 V
 * -b) 9.526E-06 V
 * -c) 1.048E-05 V
 * -d) 1.153E-05 V
 * -e) 1.268E-05 V

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0582 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 4.791E-07 s
 * -b) 5.271E-07 s
 * -c) 5.798E-07 s
 * -d) 6.377E-07 s
 * -e) 7.015E-07 s

3) A 72 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 14 g, and the magnitude of the magnetic field is 0.54 T. What current is required to maintain this balance?


 * -a) 2.651E-01 A
 * -b) 2.916E-01 A
 * -c) 3.208E-01 A
 * +d) 3.529E-01 A
 * -e) 3.882E-01 A

4) A charged particle in a magnetic field of 4.970E-04 T is moving perpendicular to the magnetic field with a speed of 2.950E+05 m/s. What is the period of orbit if orbital radius is 0.344 m?


 * +a) 7.327E-06 s
 * -b) 8.060E-06 s
 * -c) 8.865E-06 s
 * -d) 9.752E-06 s
 * -e) 1.073E-05 s

Click these links for the keys:

Key: V2
1) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?


 * -a) 5.792E-06 s
 * +b) 6.371E-06 s
 * -c) 7.008E-06 s
 * -d) 7.709E-06 s
 * -e) 8.480E-06 s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.897E-07 s
 * -b) 2.087E-07 s
 * -c) 2.296E-07 s
 * +d) 2.525E-07 s
 * -e) 2.778E-07 s

3) A 76 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.367 T. What current is required to maintain this balance?


 * -a) 3.432E-01 A
 * -b) 3.775E-01 A
 * -c) 4.152E-01 A
 * +d) 4.568E-01 A
 * -e) 5.024E-01 A

4) The silver ribbon shown are a=3.89 cm, b=2.94 cm, and c= 0.58 cm. The current carries a current of 242 A and it lies in a uniform magnetic field of 2.47 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 9.911E-06 V
 * +b) 1.090E-05 V
 * -c) 1.199E-05 V
 * -d) 1.319E-05 V
 * -e) 1.451E-05 V

Click these links for the keys:

Key: W0
1) The silver ribbon shown are a=3.52 cm, b=2.88 cm, and c= 0.515 cm. The current carries a current of 137 A and it lies in a uniform magnetic field of 2.02 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 5.685E-06 V
 * -b) 6.253E-06 V
 * -c) 6.878E-06 V
 * -d) 7.566E-06 V
 * -e) 8.323E-06 V

2) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * -a) 2.875E+00 MeV
 * -b) 3.162E+00 MeV
 * -c) 3.479E+00 MeV
 * -d) 3.827E+00 MeV
 * +e) 4.209E+00 MeV

3) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 &deg; to a uniform magnetic fied of 0.184 T?


 * +a) 5.610E-07 N m
 * -b) 6.171E-07 N m
 * -c) 6.788E-07 N m
 * -d) 7.467E-07 N m
 * -e) 8.213E-07 N m

4) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.394 T magnetic field is directed 14&deg; away from the wire?


 * -a) 6.302E-01 N/m
 * -b) 6.932E-01 N/m
 * +c) 7.625E-01 N/m
 * -d) 8.388E-01 N/m
 * -e) 9.227E-01 N/m

Click these links for the keys:

Key: W1
1) The silver ribbon shown are a=3.96 cm, b=3.35 cm, and c= 1.07 cm. The current carries a current of 295 A and it lies in a uniform magnetic field of 3.4 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 9.015E-06 V
 * +b) 9.916E-06 V
 * -c) 1.091E-05 V
 * -d) 1.200E-05 V
 * -e) 1.320E-05 V

2) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.405 T magnetic field is directed 48&deg; away from the wire?


 * -a) 1.131E+00 N/m
 * -b) 1.244E+00 N/m
 * -c) 1.368E+00 N/m
 * +d) 1.505E+00 N/m
 * -e) 1.655E+00 N/m

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.157 m and a magneticfield of 0.512 T. What is their maximum kinetic energy?


 * -a) 2.574E-01 MeV
 * -b) 2.831E-01 MeV
 * +c) 3.114E-01 MeV
 * -d) 3.425E-01 MeV
 * -e) 3.768E-01 MeV

4) A circular current loop of radius 1.56 cm carries a current of 2.57 mA. What is the magnitude of the torque if the dipole is oriented at 38 &deg; to a uniform magnetic fied of 0.79 T?


 * -a) 7.898E-07 N m
 * -b) 8.688E-07 N m
 * +c) 9.557E-07 N m
 * -d) 1.051E-06 N m
 * -e) 1.156E-06 N m

Click these links for the keys:

Key: W2
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.44 m and a magneticfield of 1.31 T. What is their maximum kinetic energy?


 * -a) 1.323E+01 MeV
 * -b) 1.456E+01 MeV
 * +c) 1.601E+01 MeV
 * -d) 1.761E+01 MeV
 * -e) 1.937E+01 MeV

2) A circular current loop of radius 2.1 cm carries a current of 5.02 mA. What is the magnitude of the torque if the dipole is oriented at 26 &deg; to a uniform magnetic fied of 0.184 T?


 * +a) 5.610E-07 N m
 * -b) 6.171E-07 N m
 * -c) 6.788E-07 N m
 * -d) 7.467E-07 N m
 * -e) 8.213E-07 N m

3) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * -a) 2.417E+00 N/m
 * -b) 2.659E+00 N/m
 * -c) 2.924E+00 N/m
 * +d) 3.217E+00 N/m
 * -e) 3.539E+00 N/m

4) The silver ribbon shown are a=4.26 cm, b=3.62 cm, and c= 1.5 cm. The current carries a current of 181 A and it lies in a uniform magnetic field of 1.96 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 2.275E-06 V
 * +b) 2.502E-06 V
 * -c) 2.752E-06 V
 * -d) 3.027E-06 V
 * -e) 3.330E-06 V

Click these links for the keys:

Key: X0
1) A charged particle in a magnetic field of 3.820E-04 T is moving perpendicular to the magnetic field with a speed of 3.890E+05 m/s. What is the period of orbit if orbital radius is 0.718 m?


 * -a) 8.713E-06 s
 * -b) 9.584E-06 s
 * -c) 1.054E-05 s
 * +d) 1.160E-05 s
 * -e) 1.276E-05 s

2) A long rigind wire carries a 7 A current. What is the magnetic force per unit length on the wire if a 0.851 T magnetic field is directed 65&deg; away from the wire?


 * -a) 4.908E+00 N/m
 * +b) 5.399E+00 N/m
 * -c) 5.939E+00 N/m
 * -d) 6.533E+00 N/m
 * -e) 7.186E+00 N/m

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0618 T . It emerges after being deflected by 67&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 3.245E-07 s
 * -b) 3.569E-07 s
 * +c) 3.926E-07 s
 * -d) 4.319E-07 s
 * -e) 4.751E-07 s

4) The silver ribbon shown are a=3.55 cm, b=2.99 cm, and c= 1.03 cm. The current carries a current of 135 A and it lies in a uniform magnetic field of 1.26 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.193E-06 V
 * -b) 1.313E-06 V
 * -c) 1.444E-06 V
 * -d) 1.588E-06 V
 * +e) 1.747E-06 V

Click these links for the keys:

Key: X1
1) The silver ribbon shown are a=4.65 cm, b=3.43 cm, and c= 1.15 cm. The current carries a current of 279 A and it lies in a uniform magnetic field of 3.48 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 6.100E-06 V
 * -b) 6.710E-06 V
 * -c) 7.381E-06 V
 * -d) 8.120E-06 V
 * +e) 8.931E-06 V

2) A long rigind wire carries a 5 A current. What is the magnetic force per unit length on the wire if a 0.83 T magnetic field is directed 22&deg; away from the wire?


 * -a) 1.062E+00 N/m
 * -b) 1.168E+00 N/m
 * -c) 1.285E+00 N/m
 * -d) 1.413E+00 N/m
 * +e) 1.555E+00 N/m

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0883 T . It emerges after being deflected by 74&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 2.280E-07 s
 * -b) 2.508E-07 s
 * -c) 2.759E-07 s
 * +d) 3.035E-07 s
 * -e) 3.339E-07 s

4) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?


 * -a) 5.792E-06 s
 * +b) 6.371E-06 s
 * -c) 7.008E-06 s
 * -d) 7.709E-06 s
 * -e) 8.480E-06 s

Click these links for the keys:

Key: X2
1) A long rigind wire carries a 8 A current. What is the magnetic force per unit length on the wire if a 0.559 T magnetic field is directed 46&deg; away from the wire?


 * -a) 2.417E+00 N/m
 * -b) 2.659E+00 N/m
 * -c) 2.924E+00 N/m
 * +d) 3.217E+00 N/m
 * -e) 3.539E+00 N/m

2) The silver ribbon shown are a=3.74 cm, b=2.68 cm, and c= 0.415 cm. The current carries a current of 228 A and it lies in a uniform magnetic field of 1.49 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 8.660E-06 V
 * -b) 9.526E-06 V
 * -c) 1.048E-05 V
 * -d) 1.153E-05 V
 * -e) 1.268E-05 V

3) A charged particle in a magnetic field of 6.400E-04 T is moving perpendicular to the magnetic field with a speed of 1.360E+05 m/s. What is the period of orbit if orbital radius is 0.751 m?


 * -a) 3.154E-05 s
 * +b) 3.470E-05 s
 * -c) 3.817E-05 s
 * -d) 4.198E-05 s
 * -e) 4.618E-05 s

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.061 T . It emerges after being deflected by 75&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 4.453E-07 s
 * -b) 4.898E-07 s
 * -c) 5.388E-07 s
 * -d) 5.927E-07 s
 * -e) 6.519E-07 s

Click these links for the keys:

Key: Y0
1) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 3.41 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.21 i + 5.39 j  + 3.81 k) x 104 m/s?


 * -a) 4.419E-14 N
 * -b) 4.861E-14 N
 * -c) 5.347E-14 N
 * +d) 5.882E-14 N
 * -e) 6.470E-14 N

2) A 11 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 13 g, and the magnitude of the magnetic field is 0.809 T. What current is required to maintain this balance?


 * +a) 1.432E+00 A
 * -b) 1.575E+00 A
 * -c) 1.732E+00 A
 * -d) 1.905E+00 A
 * -e) 2.096E+00 A

3) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 3.43 mT and 4.670E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.362E+06 m/s
 * -b) 1.498E+06 m/s
 * -c) 1.647E+06 m/s
 * -d) 1.812E+06 m/s
 * -e) 1.993E+06 m/s

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0108 T . It emerges after being deflected by 77&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.940E-06 s
 * -b) 2.134E-06 s
 * -c) 2.347E-06 s
 * +d) 2.582E-06 s
 * -e) 2.840E-06 s

Click these links for the keys:

Key: Y1
1) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 2.59 mT and 4.340E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.676E+06 m/s
 * -b) 1.843E+06 m/s
 * -c) 2.028E+06 m/s
 * -d) 2.230E+06 m/s
 * -e) 2.453E+06 m/s

2) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 7.83 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (6.16 i + 2.1 j  + 1.74 k) x 104 m/s?


 * -a) 4.783E-14 N
 * +b) 5.262E-14 N
 * -c) 5.788E-14 N
 * -d) 6.367E-14 N
 * -e) 7.003E-14 N

3) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0631 T . It emerges after being deflected by 44&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 1.897E-07 s
 * -b) 2.087E-07 s
 * -c) 2.296E-07 s
 * +d) 2.525E-07 s
 * -e) 2.778E-07 s

4) A 27 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 8 g, and the magnitude of the magnetic field is 0.85 T. What current is required to maintain this balance?


 * -a) 3.106E-01 A
 * +b) 3.416E-01 A
 * -c) 3.758E-01 A
 * -d) 4.134E-01 A
 * -e) 4.547E-01 A

Click these links for the keys:

Key: Y2
1) A 44 cm-long horizontal wire is maintained in static equilibrium by a horizontally directed magnetic field that is perpendicular to the wire (and to Earth's gravity). The mass of the wire is 7 g, and the magnitude of the magnetic field is 0.784 T. What current is required to maintain this balance?


 * -a) 1.644E-01 A
 * -b) 1.808E-01 A
 * +c) 1.989E-01 A
 * -d) 2.188E-01 A
 * -e) 2.406E-01 A

2) An electron beam (m=9.1 x 10&minus;31kg, q=1.6 x 10&minus;19C) enters a crossed-field velocity selector with magnetic and electric fields of 4.15 mT and 4.440E+03 N/C, respectively. What must the velocity of the electron beam be to transverse the crossed fields undeflected ?


 * +a) 1.070E+06 m/s
 * -b) 1.177E+06 m/s
 * -c) 1.295E+06 m/s
 * -d) 1.424E+06 m/s
 * -e) 1.566E+06 m/s

3) An alpha-particle (q=3.2x10&minus;19C) moves through a uniform magnetic field that is parallel to the positive z-axis with magnitude 4.69 T. What is the  x-component of the force on the alpha-particle if it is moving with a velocity (8.9 i + 4.27 j  + 7.52 k) x 104 m/s?


 * -a) 5.296E-14 N
 * -b) 5.826E-14 N
 * +c) 6.408E-14 N
 * -d) 7.049E-14 N
 * -e) 7.754E-14 N

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 2.561E-07 s
 * +b) 2.817E-07 s
 * -c) 3.099E-07 s
 * -d) 3.409E-07 s
 * -e) 3.750E-07 s

Click these links for the keys:

Key: Z0
1) The silver ribbon shown are a=4.12 cm, b=3.32 cm, and c= 1.46 cm. The current carries a current of 120 A and it lies in a uniform magnetic field of 1.39 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 1.209E-06 V
 * -b) 1.329E-06 V
 * -c) 1.462E-06 V
 * -d) 1.609E-06 V
 * -e) 1.770E-06 V

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0454 T . It emerges after being deflected by 74&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 4.878E-07 s
 * -b) 5.366E-07 s
 * +c) 5.903E-07 s
 * -d) 6.493E-07 s
 * -e) 7.143E-07 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.376 m and a magneticfield of 0.786 T. What is their maximum kinetic energy?


 * -a) 2.875E+00 MeV
 * -b) 3.162E+00 MeV
 * -c) 3.479E+00 MeV
 * -d) 3.827E+00 MeV
 * +e) 4.209E+00 MeV

4) A charged particle in a magnetic field of 1.750E-04 T is moving perpendicular to the magnetic field with a speed of 2.330E+05 m/s. What is the period of orbit if orbital radius is 0.893 m?


 * -a) 2.189E-05 s
 * +b) 2.408E-05 s
 * -c) 2.649E-05 s
 * -d) 2.914E-05 s
 * -e) 3.205E-05 s

Click these links for the keys:

Key: Z1
1) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.436 m and a magneticfield of 0.881 T. What is their maximum kinetic energy?


 * -a) 5.342E+00 MeV
 * -b) 5.877E+00 MeV
 * -c) 6.464E+00 MeV
 * +d) 7.111E+00 MeV
 * -e) 7.822E+00 MeV

2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?


 * -a) 4.543E-06 s
 * -b) 4.997E-06 s
 * -c) 5.497E-06 s
 * -d) 6.046E-06 s
 * +e) 6.651E-06 s

3) The silver ribbon shown are a=3.55 cm, b=2.99 cm, and c= 1.03 cm. The current carries a current of 135 A and it lies in a uniform magnetic field of 1.26 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * -a) 1.193E-06 V
 * -b) 1.313E-06 V
 * -c) 1.444E-06 V
 * -d) 1.588E-06 V
 * +e) 1.747E-06 V

4) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0243 T . It emerges after being deflected by 82&deg; from its original direction. How much time did it spend in that magnetic field?


 * +a) 1.222E-06 s
 * -b) 1.344E-06 s
 * -c) 1.479E-06 s
 * -d) 1.627E-06 s
 * -e) 1.789E-06 s

Click these links for the keys:

Key: Z2
1) A charged particle in a magnetic field of 4.480E-04 T is moving perpendicular to the magnetic field with a speed of 7.700E+05 m/s. What is the period of orbit if orbital radius is 0.368 m?


 * -a) 2.730E-06 s
 * +b) 3.003E-06 s
 * -c) 3.303E-06 s
 * -d) 3.633E-06 s
 * -e) 3.997E-06 s

2) An alpha-particle (m=6.64x10&minus;27kg, q=3.2x10&minus;19C) briefly enters a uniform magnetic field of magnitude 0.0887 T . It emerges after being deflected by 69&deg; from its original direction. How much time did it spend in that magnetic field?


 * -a) 2.561E-07 s
 * +b) 2.817E-07 s
 * -c) 3.099E-07 s
 * -d) 3.409E-07 s
 * -e) 3.750E-07 s

3) A cyclotron used to accelerate alpha particlesm=6.64 x 10&minus;27kg, q=3.2 x 10&minus;19C) has a radius of 0.388 m and a magneticfield of 1.19 T. What is their maximum kinetic energy?


 * -a) 8.491E+00 MeV
 * -b) 9.340E+00 MeV
 * +c) 1.027E+01 MeV
 * -d) 1.130E+01 MeV
 * -e) 1.243E+01 MeV

4) The silver ribbon shown are a=4.81 cm, b=3.96 cm, and c= 1.3 cm. The current carries a current of 274 A and it lies in a uniform magnetic field of 3.23 T.  Using the density of 5.900E+28 electrons per cubic meter for silver, find the Hallpotential between the edges of the ribbon.


 * +a) 7.202E-06 V
 * -b) 7.922E-06 V
 * -c) 8.714E-06 V
 * -d) 9.586E-06 V
 * -e) 1.054E-05 V

Click these links for the keys: