- #1

FS98

- 105

- 4

## Homework Statement

For the cylinder of uniform charge density in Fig. 2.26:

(a) show that the expression there given for the field inside the cylinder follows from Gauss’s law;

(b) find the potential φ as a function of r, both inside and outside the cylinder, taking φ = 0 at r = 0.

2. Homework Equations

2. Homework Equations

## The Attempt at a Solution

I finished part a and got the correct answers. I’m a bit confused about b now. Particularly the bit at the end about taking the potential and radius at 0. Can anybody explain where I start here?