For this problem I am giving the following:(adsbygoogle = window.adsbygoogle || []).push({});

An infinite slab of charge parallel to the yz plane whose density is given by:

p(x)= t, -b<x<b;

0, |x|>b;

Where t and b are constants.

And I am to find the electric field.

I am pretty confused on how to do this problem. I know that the electric field is in the x direction, and that is also where the normal to the surface is directed. So I thought it would be:

[tex]2 v E =\frac{q}{\epsilon}[/tex] where the q = [tex]\frac{p}{v}[/tex]

Where v is the volume, similar to how you do an infinite sheet but I don't get the right answer. But then q would be 0 for outside of b and that is not right so I guess my method is completely wrong.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Gauss' law help please.

**Physics Forums | Science Articles, Homework Help, Discussion**