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SherlockOhms
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Homework Statement
4.10.4 Thin Slab
Let some charge be uniformly distributed throughout the volume of a large planar slab of plastic of thickness d. The charge density is ρ. The mid-plane of the slab is the y-z plane.
(a) What is the electric field at a distance from the mid-plane when |x| < d/2?
(b) What is the electric field at a distance from the mid-plane when |x| > d/2?
[Hint: put part of your Gaussian surface where the electric field is zero.]
Homework Equations
E = σ/2ε0.
The Attempt at a Solution
So in vector form the electric field will be negative in the - x direction and positive in the +x direction. This isn't a homework assignment. They're course notes with sample problems. I don't really have any ideas how to go about this so any hints would be great like.