A and B are two concentric spherical shells. If A is given a charge `+q` while B is earthed as shown in figure then

Options

A. The charge density of A and B are same
B. The field inside and outside A is zero
C. The field between A and B is not zero
D. The field inside and outside B is zero

Answer

C

Explanation

Charge –Q is induced (from earth) on the inner surface of the outer shell and electric field will exist b/w A & B.