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Lectures
Lecture 11: iq09
1. Electric
flux, outgoing flux from a box.
2. Outgoing
flux from a point charge
o
S1: a sphere
o
S2: arbitrary shape
o
Gauss law: Valid for any S and any charge
distribution enclosed by S.
3. Uniform
charged shell:
o
r>R, kQ/r2;
r<R, E=0.
o
Flux through an S, which is within a
conducting medium.
o
Surface charge densities: q’ and q”.
4. Long
Rod: From Q/L and r find E. 1/r
-dependence
5. Disk:
(Q/A)/2e0 ~1/r0-dependence
Announcements:
1.
HW16-3: Due M11:30pm. (Notice a postponement of 24 hrs from the syllabus)
2.
Preparation for midterm1
o
A
check list on items to look over:
o
Textbook:
Highlights of the chapter. Figures.
o
Clicker
questions (class notes)
o
Homework
problems: Understand the physics of each problem.
o
Instructor’s
reviews for unit-1
o
Part
of Monday lecture: Review unit 1
o
Extra
review session: Tue 5-6, TBA
o
More
questions and answers in Wed. class.
3.
Instructor contact information:
o
After
each lecture: office hours: MWF 9-10:15am, other time by appointment.
o
Email:
chiu@physics.utexas.edu (subject line:
should contain 303L-MI). If your email is not replied within 24 hours please re-sent
your email once again.