A large hollow metal sphere of radius R has a small opening at the top. Small drops of mercury, each of radius r and charged to a potential V, fall into the sphere. The potential of the sphere becomes V after N drops fall into it. Then
A
for any value of N B
for 
C
for 
D
for 
Text Solution
Verified by ExpertsThe correct answer is:
D
V' = V for 
After N drop potential of hollow sphere = V'
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