COLUMN-I		COLUMN-II
A)	Capacitance of the given system   is	P)	$\frac{{\epsilon }_{0}A(b+2a)}{2ab}$
B)	Concentric spherical shell of radius a and b, inner one is given a charge and outer is earthed. Capacitance of the system across the terminals of the cell is	Q)	$4\pi {\epsilon }_0\left[\frac{ab}{b-a}\right]$
C)	Concentric spherical shells of radius a and b, outer one is given a charge and inner one is earthed. Capacitance of the system across the terminals of the cell is	R)	$4\pi {\epsilon }_0(a+b)$
D)	Area of the plates is A and their separation is as indicated. Capacitance of the system across the terminals shown is	S)	$\frac{4\pi {\epsilon }_0{b}^2}{(b-a)}$