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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 a with a charge Q at its centre is

A

`(sigmaRQ)/(epsilon_(0))((2)/(pi)-(1)/(2))`

B

`(sigmaRQ)/(epsilon_(0))((1)/(2)-(1)/(pi))`

C

`(sigmaaQ)/(epsilon_(0))((1)/(pi)-(1)/(2))`

D

`(sigmaaQ)/(epsilon_(0))((1)/(2)-(2)/(pi))`

Text Solution

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The correct Answer is:
B
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