The capacitance of a metallic sphere will be $1\,\mu F$, if its radius is nearly

The capacitance of a parallel plate condenser does not depend on

What physical quantities may $X$ and $Y$ represent ? ($Y$ represents the first mentioned quantity)

The potentials of the two plates of capacitor are $+10\,V$ and $-10\, V$. The charge on one of the plates is $40 \,C$. The capacitance of the capacitor is........$F$

A solid conducting sphere of radius $R_1$ is surrounded by another concentric hollow conducting sphere of radius $R_2$. The capacitance of this assembly is proportional to

Two identical thin metal plates has charge $q _{1}$ and $q _{2}$ respectively such that $q _{1}> q _{2}$. The plates were brought close to each other to form a parallel plate capacitor of capacitance $C$. The potential difference between them is.