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If a charge – 150 nC is given to a conce...

If a charge `– 150` nC is given to a concentric spherical shell and a charge `+50` nC is placed at its centre then the charge on inner and outer surface of the shell is

A

` –50 nC, –100 nc`

B

`+50 nC, –200 nC`

C

`–50 nC, –200 nC `

D

`50 nC, 100 nC `

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