#
PHYS208 10/8 Class

Bottom of page /
Previous Class /
Next Class

## Pre-Exam Wrap-Up

### Resources for Midterm Exam

Previous Exam

Quizzes: 1-4

Concept Checks: 1-14

Four "kinds" of integrals in PHYS208 so far:

- Direct integration of
*d***E** or *d*V over charge distributions
- Line integrals over
**E**.*d***s** to find V
- Surface integrals to find the electric flux for application of Gauss's law
- Volume integrals to find the charge enclosed by gaussian surface

Situations in PHYS208 where Gauss's law may be used to evaluate the electric field at a point:

- Point (or spherical) symmetry

-- example: point charge, sphere of charge

-- gaussian surface to use: sphere centered about center of charge distribution
- Line (or cylindrical) symmetry

-- example: infinite line of charge, infinite cylinder of charge

-- gaussian surface to use: cylinder sharing axis of charge distribution
- Sheet (or planar) symmetry

-- example: sheet of charge, conducting surface

-- gaussian surface to use: thin can with end cap parallel to surface

Terminal voltage of a real battery

Top of page;
Back to PHYS208 Home Page.

Comments, suggestions, or requests to
ghw@udel.edu.
"http://www.physics.udel.edu/~watson/phys208/clas1008.html"

Last updated Oct. 8, 1997.

Copyright George Watson, Univ. of Delaware, 1997.