Two conducting shells of radius a and bare connected by conducting wire as shown in figure. The capacitance of this system is :

Two spherical conductor A and B of radii a and b ( bgta ) are placed concentrically in air. The two are connected by a copper wire as shown in figure. The equivalent capacitance of the system is

There are two concentric conducting shells of radius R, 2R respectively. Charge on each surface is as shown in the figure. Equivalent capacitance of this system is:

There are two concentric conducting shells of radius R, 2R respectively. Charge on each surface is as shown in the figure. Equivalent capacitance of this system is:

A conducting ball of radius r is charged to a potential V_0 . It is enveloped by a thin walled conducting sphere of radius R (gt r) and the two spheres are connected by a conducting wire. Find the potential of the outer sphere.

Consider an assembly of three conducting concentric spherical shells of radii a,b and c as shown in figure. Find the capacitance of the assembly between the points A and B.

Two conductors of capacitance C_1" and "C_2 are connected by a conducting wire. Some amount of charge is given to the system. How is the ratio of charges acquired by the conductors related to their capacitances?