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E field of a uniform and planar distribution of charge A uniform surface charge density of...

E field of a uniform and planar distribution of charge

A uniform surface charge density of 5nC/m2 is present in the region x=0, -2<y<2 and all z. if ε=ε0, find E at:
a) PA(3,0,0)
b) PB(0,3,0).

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