The diagrams below show regions of equipotentials. A positive charge is moved from A to B in each diagram.
(a) In all the four cases the work done is the same
(b) Minimum work is required to move q in figure(a)
(c) Maximum work is required to move q in figure (b)
(d) Maximum work is required to move q in figure (c)
Answer : (a) In all the four cases the work done is the same
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