Question

Four parallel large plates separated by equal distance d are arranged as shown in. The area of the plates is `S` Find the potential differnce between plats `B and C` if plate `B` is given a charge Q.
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Answer 1

Moving from plate `A` and `D`
`0 + ((Q - x))/(C) - (x)/(c)- (x)/(C) = 0` x = (Q)/(3)`
Hence, potential difference between `B` and `C`
`V_(BC) =x/C=Q/(3C)=(Qd)/(3epsilon_(0)S)`
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