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The diagrams below show regions of equipotentials :

A positive charge is moved from A to B in each diagram :

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a
In all the four cases the work done is the same
b
Minimum work is required to move q in figure (i)
c
Maximum work is required to move q in figure (ii)
d
Maximum work is required to move q in figure (iii)

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detailed solution

Correct option is A

W =q∆Vas ∆V is same in all conditions, work will be same.


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