AIIMS 2001
- Exam
- AIIMS
- Year
- 2001
- Subject
- Physics
- Chapter
- Electrostatics
AIIMS 2001 · Physics · Electrostatics
If a unit positive charge is taken from one point to another over...
If a unit positive charge is taken from one point to another over an equipotential surface, then
Options
- Awork is done on the charge
- Bwork is done by the charge
- Cwork done is constant
- Dno work is done.
Correct answer
D. no work is done.
Step-by-step 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.