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A and B are two concentric spherical she...

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

A

the charge appearing on inner surface of B is `-Q`

B

the field inside and outside A is zero

C

the fieldm between A and B is not zero

D

the charge appearing on outer surface of B is zero

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The correct Answer is:
A, C, D
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