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:

Two concentric conducting shells of radii R and 2R are having charges Q and -2Q respectively.In a region r

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

Inside a charged thin conducting shell of radius R, a point charge +Q is placed as shown in figure potential of shell may be

Inside a charged thin conducting shell of radius R, a point charge +Q is placed as shown in figure potential of shell may be

There are two concentric conducting spherical shells of radius r_A and r_B respectively (r_B= 2r_A) . If the inner shell is given a charge Q and outer shell is given a charge 2Q, then the potential difference between the surfaces of the shells will be K=1/(4piepsilon_0)

There are two concentric conducting spherical shells of radius r_A and r_B respectively (r_B= 2r_A) . If the inner shell is given a charge Q and outer shell is given a charge 2Q, then the potential difference between the surfaces of the shells will be K=1/(4piepsilon_0)

Two spherical conductors A_(1) and A_(2) of radii r_(1) and r_(2) are placed concentrically in air. The two are connected by a copper wire as shown in figure. Then, the equivalent capacitance of the system is

Two spherical conductors A_(1) and A_(2) of radii r_(1) and r_(2) are placed concentrically in air. The two are connected by a copper wire as shown in figure. Then, the equivalent capacitance of the system is

There are two concentric metallic shells of radii R and 2R, if outer shell is given charge q_1 , then charge on surface of inner shell will be