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The force between two points charges +q ...

The force between two points charges +q and -q, separated by a distance r is F. if one charge remains stationary while the other moves around it in a circle of radius r, then the work done is given by

A

`Fxxr`

B

`Fxx2pir`

C

zero

D

`F//2pir`

Text Solution

Verified by Experts

The correct Answer is:
C
The potential (V) at all points on a circle of radius r, remains constant.
`therefore dV=0 and dW=0`
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