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?

Options

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`

Answer

A, D