# Electric field

1. Oct 16, 2011

### magnifik

What is the electric field for the following charge distribution:

ρ = ρ0 x/a for -a < x < a
0 elsewhere

Use the differential form of Gauss' Law.

I know that the differential form is $\nabla$ . D = ρv and that E = D/ε, but how do I find D from what is given? Do i integrate the charge distribution with respect to x?

2. Oct 18, 2011

### susskind_leon

3. Oct 18, 2011

### magnifik

how would i do a triple integral with what i'm given?

4. Oct 19, 2011

### susskind_leon

Last edited by a moderator: May 5, 2017