Questions
Fig. shows two parallel equipotential surfaces A and .B kept at a small distance r from each other. A point charge of - q coulomb is taken from the surface A to B. The amount of net work W done will be given by
a
W=−14πε0qr
b
W=14πε0qr2
c
W=−14πε0qr2
d
zero
detailed solution
Correct option is D
Work done = q x AVFor equipotential surface ∆V = 0∴ Work done = zeroTalk to our academic expert!
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