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A positive charge Q is uniformly distrib...

A positive charge Q is uniformly distributed along a circular ring of radius R. A small test charge q is placed at the centre of the ring as shown in figure. Then

A

`(1)/(4piepsilon_(0))(Qq)/(R)(1-sqrt((2)/(3)))`

B

`(1)/(4piepsilon_(0))(Qq)/(R)((1)/(2))`

C

`(1)/(4piepsilon_(0))(Qq)/(R)((1)/(sqrt2))`

D

None of these

Text Solution

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The correct Answer is:
A
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