Wright State University Lake Campus/2019-9/Phy 2410/Notes

PHY2410

https://pilot.wright.edu/d2l/le/content/517109/Home

08-27T (week1) UP2-1-Charges and fields.
UP2-0-Overview UP2-1-Charges and fields. powerpoint pages 1-10

Lab
Inventory for Kits. Required Report to be done at home.

08-29R (week1)
UP2-1-Charges and fields powerpoint

09-03T (week2)
Finished UP2-1-Charges and fields powerpoint. Practice for Test Tue 10 Sep up2

Lab
Practice for test on Tues 10: https://pilot.wright.edu/d2l/le/content/517109/viewContent/2886956/View

09-05R (week2) UP2-2-Gauss Law
Start powerpoint UP2-2-Gauss Law powerpoint

09-10T (week3)
Test 1

Lab
Go over test?

Report longer than a half page.

Do assigned circuit

Make a quick circuit diagram.

Most important part: Document with greek letters.

Thursday:
 * Group reports encouraged.
 * You must do the assigned circuit, unless you choose to do no circuit.
 * Most of the time, you can do a report on something else.
 * Choices: Previous test or Area of a sphere using calculus.

These images illustrate the physics version of spherical coordinates on a globe (angular part only)]]

09-17T (week4) UP2-5-Current Resistance

 * UP2-5-Current Resistance

09-24T (week5) UP2-6-Direct-Current Circuits

 * UP2-6-Direct-Current Circuits

10-01T (week6) UP2-7-Magnetic forces and fields

 * UP2-7-Magnetic forces and fields

10-08T (week7)
Announce test next Tuesday:
 * ../ or
 * https://pilot.wright.edu/d2l/home/517109

_____
 * How much longer is the outer edge of the tape longer than the inner edge?
 * 1) Answer without using calculus
 * 2) Do a first order approximation (whisky-cigar w/o the cigar) and compare the answers.
 * 3) Can you define an intrinsic variable for the bent/wrinkled tape?

Set the radius at the free-throw be nominally R= 2m and let the tape width be W=4cm. Express all your equations using the symbols (R,W) in order to app

Lab and Recitation Hours

 * Lab1 110 min
 * Rec 55 min
 * Lab2 110 min
 * 110<Total<275

Note that 275/5 = 55

55-10 = 45 minutes


 * Lets do projects and split into 5 groups:
 * Lab1 45 min (X 2 shifts)
 * Rec 45 min
 * Lab2 45 min (X 2 shifts)

Halfway between 3:20 and 5:20 is 4:20


 * Two lab periods every day
 * 3:20 - 4:20 You can come 15 minutes late or leave 15 min early.
 * 4:20 - 5:20 You can come 15 minutes late or leave 15 min early.


 * Recitation group
 * 5:30 - 6:25 You can come 10 minutes late or leave 10 min early.


 * We will have 5 groups:
 * 1) Early Tuesday Lab
 * 2) Late Tuesday Lab
 * 3) Recitation Tuesday
 * 4) Early Thursday Lab
 * 5) Late Late Thursday Lab

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Projects
The goal of each project is co-authorship on the Lake Campus Research Symposium

Conceptual technical writing

 * Physics for beginners

Optics and manufacturing

 * Upside down goggles

Radioactive decay, statistics, and computer programming

 * Python and radioactity with dice.

Mathematical physics

 * 1) Why $$1+2+3+...=-\tfrac {1}{12}$$ is useful if not true
 * 2) Generalizing the Taylor expansion to two dimensions
 * 3) Calculating the area of a sphere and how that eventually led to a precise definition of temperature and entropy

Creating exam questions

 * Quizbank

Mechanics, music and measurement of time

 * Galileo's ramp in D minor.

Gridion pendulum and properties of materials

 * Wright State University Lake Campus/2019-9/Gridiron pendulum

Physics 1110 labs

 * 1) Force table w Escel and error analysis
 * 2) Stretching a long string
 * 3) Others are possible

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Charge due to a slab of charge
https://www.youtube.com/watch?v=39ZZH1VjxPk {A cylinder of radius, R, and height H has a uniform charge density of $$\rho$$. The height is much less than the radius: H << R. The electric field at the center vanishes. What formula describes the electric field at a distance, z, on axis from the center if z > H/2?} - $$\varepsilon_0 E=   \rho z $$ -b) $$\varepsilon_0 E=  H\rho $$ -c) $$\varepsilon_0 E=   H\rho z$$ -d) none of these are correct +e) $$\varepsilon_0 E = H\rho /2$$ {A cylinder of radius, R, and height H has a uniform charge density of $$\rho$$. The height is much less than the radius: H << R. The electric field at the center vanishes. What formula describes the electric field at a distance, z, on axis from the center if z < H/2?} - $$\varepsilon_0 E = H\rho /2$$ -b) none of these are correct +c) $$\varepsilon_0 E=   \rho z $$ -d) $$\varepsilon_0 E=  H\rho $$ -e) $$\varepsilon_0 E=   H\rho z$$

Start lab schedule

 * Unless I change my mind, you are all allowed to do this lab by doing an assigned lab and the report. The only complication is that I might not have enough "traditional" labs for you to do.  I might be forced to make you do one of my projects on one or two lab sessions.
 * For that reason, I need a list of people who wish to do a project leading to a symposium poster.


 * There is a shortage of people who want to do the Thursday late lab (4:25-5:20) due to a difficult class that follows. We will devote that time-slot to a project related to materials, and set aside time for study if you have an exam just after the test.
 * I have two "engineering projects":
 * Upside down goggles
 * Gridiron pendulum: Gridiron pendulum and also Lake Campus Gridiron page


 * My most exciting project is essentially a this technical writing problem. If this is successful (and it probably won't be), you could be a co-author on a refereed journal article.

10-17R (week8) up-?=Electromagnetic induction

 * Electromagnetic induction

Tues 22 October covers an old practice test:

 * https://pilot.wright.edu/d2l/le/content/517109/viewContent/2886956/View

Field theory summary
Gravitational_acceleration

Electrostatics

Magnetostatics and Magnetic_field

10-31R (week10)

 * 1) https://phet.colorado.edu/sims/html/charges-and-fields/latest/charges-and-fields_en.html
 * 2) https://www.falstad.com/emstatic/ Two dimensional
 * 3) https://web.iit.edu/sites/web/files/departments/academic-affairs/academic-resource-center/pdfs/Amperes_law.pdf

11-05T (week11)
We will do 7 problems from File:Quizbankqb d cp2.12.pdf
 * $$\vec B=\oint\frac{\mu_0}{4\pi}\frac{I d\vec{\ell} \times \hat r}{|r|^2}$$ and the volume integral $$\int\frac{\mu_0}{4\pi}\frac{\vec J \times \hat r}{|r|^2} d\tau'$$, where $$\vec J$$ is current density.
 * $$\oint \vec B \cdot d\vec\ell = \mu_0 I_{encl}$$ is Ampere's law relating a closed integral involving magnetic field to the total current enclosed by that path.