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## Homework Statement

A slab of insulating material has a nonuniform volume charge density

given by rho = Cx2, where C is a positive constant and x is measured from the slabs center. The slab is infi nite in the y and z directions.

(a) Find the electric fi eld for |x| > d=2, that is, in the regions exterior to the slab.

(b) Find the electric field for |x| < d=2, that is, in the interior region of the slab.

## Homework Equations

Not sure

## The Attempt at a Solution

I tried thinking in terms of gauss' law but i'm term how to tackle this problem