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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 at the centre is

A

`(qQ)/(4piepsi_(0)r)`

B

`(qQ)/(4piepsi_(0)^(2)r)`

C

`(qQ)/(4piepsi_(0)r^(2))`

D

none of the above

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