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Question: Two concentric spherical conducting shells of radii R and 2R carry charges Q and 2Q respectively. Ch...

Two concentric spherical conducting shells of radii R and 2R carry charges Q and 2Q respectively. Change in electric potential on the outer shell when both are connected by a conducting wire is –

A

Zero

B

3kQ2R\frac{3kQ}{2R}

C

kQR\frac{kQ}{R}

D

2kQR\frac{2kQ}{R}

Answer

Zero

Explanation

Solution

Initial potential at outer shell

V1 = + =

Final potential at outer shell is

V2 =

\ DV = V1 – V2 = 0