The diagrams below show regions of equipotentials. A positive charge is moved from A to B in each diagram.

Question

The diagrams below show regions of equipotentials.

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

In all the four cases the work done is the same.

Minimum work is required to move q in figure(I).

Maximum work is required to move q in figure (II).

Maximum work is required to move q in figure (III)

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