Question

Fig. shows two parallel surfaces A and B at the same
potential, kept at a small distances from each other.
A point charge q is taken from the surface A to B. The
amount of work done is
q?
A)
C) zero
216,1
9
B) 80€,
D)
q?
41€, r​

Answer 1

Since, the potential of both surfaces A and B is same. That is, v(A) = v(B)

So, delta V = 0

Work done, W = q. delta V

W = 0

Option C). Zero is correct.