1.

The work done to move a charge along an equipotential from `A` to `B`A. cannot be defined as `- int_(A)^(B) E. dl`B. must be defined as `- int_(A)^(B) E. dl`C. is zeroD. can have a non-zero value

Answer» Correct Answer - B::C
From the knowledge of theorry, work done to move a charge along an equipotential from `A` to `B`,
`W = - int_(A)^(B) vec(E). Vec(dl)`
On equipotenital surface, `vec(E) _|_ vec(dl)`
`W = - int_(A)^(B) E(dl) cos 90^(@) = Zero`.
Choices (b) and (C ) are correct.


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