The diagram below show regions of equipotential:
A positive chrages is moved from `A` to `B` in each diagram.

Options

A. Maximum work is required to move q in figure (iii)
B. In all the four cases, the work done is the same
C. Minimum work is required to move q in figure (i)
D. Maximum work is required to move q in figure (ii)

Answer

B

Explanation

We know that
work done" "`(W)=qtriangleV`
`triangleV is same in all the cases. So , work done will be same in the all cases.