The diagrams below show regions of equipotentials.
A positive charge is moved from A to B in each diagram.
Maximum work is required to move q in figure (c).
In all the four cases the work done is the same.
Minimum work is required to move q in figure (a).
Maximum work is required to move q in figure (b).
As we discussed in
Work done in moving a charge -
Always be zero in equipotential surface.
-
work done is given as w=q.sv
In all the four cases the potential difference from A to B is same
Option 1)
Maximum work is required to move q in figure (c).
This option is incorrect
Option 2)
In all the four cases the work done is the same.
This option is correct
Option 3)
Minimum work is required to move q in figure (a).
This option is incorrect
Option 4)
Maximum work is required to move q in figure (b).
This option is incorrect