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A point charge Q is placed at the centre...

A point charge `Q` is placed at the centre of a circular wire of radius `R` having charge `q`. Find the force of electrostatic interaction between point charge and the wire.

A

`(qQ)/(4piepsilon_(0)R^(2))`

B

zero

C

`(q^(2))/(4pi epsilon_(0)R`

D

none of these

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(b)
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