The work done in carrying a charge q onc...

The work done in carrying a charge q once round a circle of radius r with a charge `q^(1)` at the centre is

zero

`(qq^(1))/(4piepsilon_(0))(1/(pir))`

`(qq^(1))/(4piepsilon_(0))(1/(2pir))`

`(qq^(1))/(4piepsilon_(0)r)`

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