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A spherical conducting shell of inner ra...

A spherical conducting shell of inner radius `r_1` and outer radius ` r_2` ahs a charges 'Q' A charges 'q' is placed at the centre of the shell.
(a) What is the surface charges density on the (i) inner surface (ii) outer surface of the shell?
(ii) Write the expression for the electric field at a point ` x gt r_2` from the centre of the shell.

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The correct Answer is:
` 80 V m , 40 Vm `
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