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Q. Eight drops of mercury of equal radii combine to form a big drop. The capacitance of a bigger drop as compared to each smaller drop is

KCETKCET 2021Electrostatic Potential and Capacitance

Solution:

$C_{B}=n^{\frac{1}{3}} C_{S}$
$C_{B}=8^{\frac{1}{3}} C_{S}$
$C_{B}=2 C_{S}$