\( A \) and \( B \) are two concentric spherical shells. If \( A \) is given a charge \( +q \) w...

\( A \) and \( B \) are two concentric spherical shells. If \( A \) is given a charge \( +q \) while \( B \) is earthed as shown in figure-1.363, then :
(A) Charge on the outer surface of shell \( B \) is zero
(B) The charge on \( B \) is equal and opposite to that of \( A \)
(C) The field inside \( A \) and outside \( B \) is zero
(D) All of the above

[aashish]

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