The radii of two concentric spherical conducting shells are r 1 and 
. The charge on the outer shell is q. The charge on the inner shell which is connected to the earth is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Let q' be the charge on the inner shell. Then, the potential of the inner is
V = potential due to its own 
potential due to the outer charge
But 
, because the inner shell is earthed.
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