Capacitance of an isolated conducting sphere of radius R 1 becomes n times when it is enclosed by a concentric conducting sphere of radius R 2 connected to earth. The ratio of 
their radii 
is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Capacitance of isolated Conducting sphere
By enclosing inside another sphere of radius
R 2 , new capacitance 
Given: 
.
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