How much work is done in moving an electric charge of between any two points situated on the same equipotential surface?
Answer and explanation
Correct answer: C.
- Step 1: By definition, the electric potential difference between any two points and on an equipotential surface is zero: .
- Step 2: Work done is given by .
Answer
.
Why not the others: Any non-zero value contradicts the fundamental definition of equipotential surfaces where electric force is perpendicular to displacement.
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