- #1

- 64

- 9

## Homework Statement

## Homework Equations

## The Attempt at a Solution

for part ii)

a<r<b E=0

I am not sure what will be the difference between the formulas for the electric field for a<r and a>b I think the formulas will look the same:

The only difference that I can think of is that when r<a, we are going to use the charge enclosed in that surface. For r>b we are going to use the total charge. Is that true?