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Electric potential at a point P, r dista...

Electric potential at a point P, r distance away due to a point charge q kept at point A is V. If twice of this charge is distributed uniformly on the surface of a hollow sphere of radius 4r with centre at point A the potential at P now is

A

V

B

`(V)/(2)`

C

`(V)/(4)`

D

`(V)/(8)`

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