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Lecture 10 Ch16.1-16.8, Ch22.1-22.4 Gauss law iq08

1. Review: Field due to a charged disk

a. Charged disk: Finite radius, infinite radius limit. Clicker 9-1

b. Parallel plate capacitor – a device stores eleectric energy. Clicker 9-2

2. Field due to spherically symmetric charged distribution.

a. Point charge: A simple example of Gauss’s law

b. Electric flux and the Gauss law -- porcupine-needle analogy.

c. Spherical charged shell

d. What is E within the shell?

3. Field due to a long rod derived from Gauss’s law.

4. Field due to an infinite sheet derived from Gauss’s law.

clicker questions: clicker 10.1

Class Announcements:

o Please go through line by line the physics content of course summary of unit 1.

o We are looking for an undergrad assistant who can convert present handwritten classnotes posted into editable efiles.

· The text will be typed in Latex format.

· The figure will be redrawn using some free download illustrator application so that each figure is editable.

o If you are interested in applying for this position please contact me.

· The applicant need to submit sample editable files to demonstrate he/she has the computer skill for the job.

· The applicant also needs to estimate the total time needed to complete the project. There are approximately 40 lectures in total.

· The deadline for the application is on Friday, Feb. 15.