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Question A1
The electric potential V(x) for a planar charge distribution is as follows:
-(1+2)² -a< x < 0
V(x) = -Vo(1+2) 0<x<a
- Vo
{
x > a
where Vo is the potential at the origin and a is a distance. Derive an expression for the corre-
sponding electric field Ē(x).

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