A spherical conducting shell of inner radius 
and outer radius 
has a charge 
. A charge 
is placed at the centre of the shell. The surface charge density on the inner and outer surfaces of the shell will be
and 
and 
and 
Text Solution
Verified by ExpertsC
Since, the charge 
is placed at the center of the shell, therefore it will induce a charge 
on the inner surface and charge 
on the outer surface of the shell.
∴ Surface charge density on the inner surface of the shell, 
Total charge on the outer surface of the shell 
∴ Surface charge density on the outer surface of the shell,
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