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Two concentric hollow conducting spheres...

Two concentric hollow conducting spheres of radius r and R are shown. The charge on outer shell is Q. what charge should be given to inner sphere so that the potential at any point P outside the outer sphere is zero ?

A

`(Qr)/(R )`

B

`- (QR)/(r ) `

C

`-Q`

D

`-(2QR)/(r )`

Text Solution

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The correct Answer is:
C
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