## PHYS208 Fundamentals of Physics II

### Hint for Ch. 26, special problem #1

Consider the inner conductor to have linear charge density of +*lambda* and the outer conductor to have -*lambda*.
Evaluate the **E** using a gaussian surface between the two conductors,
and then evaluate the resulting potential difference between the two conductors.
Substitute the parameters stated in the problem into the resulting formula for capacitance.
(*HRW* derives a formula for the capacitance.)

"http://www.physics.udel.edu/~watson/phys208/exercises/hints/26-spec1.html"

Last updated Sept. 29, 1997.

Copyright George Watson, Univ. of Delaware, 1997.