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The work done to move a charge along an ...

The work done to move a charge along an equipotential from `A` to `B`

A

must be defined as `-underset(P)overset(Q)intvecE.vec(dl)`

B

is zero

C

can have a non-zero value

D

both (a) and (b)are correct

Text Solution

Verified by Experts

The correct Answer is:
D
Work done to move a unit charge along an equipotential surface from P to Q,
`W=-oversetQundersetP intvecE.dvecl`
On equipotential surface `vecE bot dvecl`
`W=-undersetPoversetQ int E(dl)cos90^@=0`
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