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A point charge q is placed at a distance...

A point charge q is placed at a distance of `r` from the centre O of an uncharged spherical shell of inner radius R and outer radius 2R.The distance `r lt R`.The electric potential at the centre of the shell will be

A

`q/(4pi epsi_(0)) (1/r-1/(2R))`

B

`q/(4pi epsi_(0)r)`

C

`q/(4pi epsi_(0)) (1/r+1/(2R))`

D

`q/(4pi epsi_(0)) (1/r-1/R)`

Text Solution

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The correct Answer is:
A
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