Atomic StructureHard

Question

Two thin conducting shells of radii R and 2R are shown in figure. The outer shell carries a charge +Q and inner shell is neutral. Choose the CORRECT option(s) :-
         

Options

A.With switch S open potential of inner sphere is same as that of point at distance from centre
B.When switch S is closed, potential of inner sphere becomes zero
C.With switch S closed charge on inner sphere is
D.With switch S closed charge on inner sphere is (-Q)

Solution

If ′S′ open, V → same w/i outer sphere
If ′S′ closed, Vnner spl. = 0
⇒ = 0 ⇒ q = -

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