An infinite slab of material has thickness of d and is located parallel to the yz-plane, between pointsr
x=-d/2 and x-d/2. The slab has a volume charge density p.r
1. How much is the electric field at x=0?r
2. Using Gauss's law, find the electric field E(x) in the region x>d/2.r
3. Using Gauss's law, find the electric field E(x) in the region 0<x<d/2.r
4. Now suppose that instead of volume charge density p, the slab has uniform surface charge density бrIn terms of p, how much is б ?

 r

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