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There are two thin concentric conductin...

There are two thin concentric conducting shells of radii a and `b(a lt b)` . Equal charges Q given to each shell. Find the charge distribution on the inner and outer shell.

Text Solution

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The charge distribution is as shown. For inner shells, there is no charge on inner surface because the charge enclosed by the Gaussian surface 1 must be zero.

The charge on inner surface of outer shall must be `-Q` because charge enclosed by Gaussian surface 2 must be zero.
As total charge of outer shell is Q, therefore a charge `+2Q` appears on the outer surface.
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