Q147 / 180 · AIIMS 2001 · Physics

If a unit positive charge is taken from one point to another over an equipotential surface, then

A
work is done on the charge
B
work is done by the charge
C
work done is constant
Correct answer
D
no work is done.

Solution

Since the potential at each point of an equipotential surface is the same, the potential does not change while we move a unit positive charge from one point to another. Therefore work done in the process is zero.

Hence, the correct answer is option: 'D'.

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