Did you know?
Water is the only substance found naturally in all three states on Earth's surface.
Did you know?
Water is the only substance found naturally in all three states on Earth's surface.
The diagrams below show regions of equipotential. 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 in figure (a).
Maximum work is required to move in figure (b).
Maximum work is required to move in figure (c).
To solve this problem, we need to determine the work done in moving a positive charge from A to B in each diagram.The work done in moving a charge between two points at different potentials is given by:
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