The diagrams below show regions of equipotentials.
A positive charge is moved from \(\mathrm A\) to \(\mathrm B\) in each diagram. Then:
1. | the maximum work is required to move \(q\) in figure(iii). |
2. | in all four cases, the work done is the same. |
3. | the minimum work is required to move \(q\) in the figure(i). |
4. | the maximum work is required to move \(q\) in figure(ii). |