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Question

A charge q is moved from point A to point B in the electric field of a uniformly charged ring of radius R and charge Q which is placed in exactly at the centre of AB. Find the work done by the agent.


A

14πε0(Qq2r)

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B

2qQ4πε0r

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C

zero

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D

None of these

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Solution

The correct option is C

zero


W=q(VBVA)Since VBVA=0W=0


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