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Two conducting spheres of radii r and 2r...

Two conducting spheres of radii r and 2r are placed at very large separation. Each sphere possesses charge Q. These spheres are connected with a conducting wire of resistance R. Then, which of the following is true?

A

Initial current is `Q/(8 pi in_0 rR)`

B

Initial current is `Q/(4 pi in_0 rR)`

C

Current reduces to half the initial current after time `8pi in_0 rR ln 2`

D

Current reduces to half the initial current after time `(8pi in_0 rR ln 2)/3`

Text Solution

Verified by Experts

The correct Answer is:
A, D
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Knowledge Check

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