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A point charge -q is carried from a poin...

A point charge -q is carried from a point A to anther point B on the axis of a charged ring of radius r carrying a charge +q. If the point A is at a distance `4/3 r` from the centre of the ring and the point B is `3/4 r` from the centre but on the opposite side, what is the net work that need to be done for this

A

`-(7)/(5)(q^(2))/(4piepsilon_(0)r)`

B

`-(1)/(5)(q^(2))/(4piepsilon_(0)r)`

C

`(7)/(5)(q^(2))/(4piepsilon_(0)r)`

D

`(1)/(5)(q^(2))/(4piepsilon_(0)r)`

Text Solution

Verified by Experts

The correct Answer is:
b
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