A and C are concentric conducting spherical shells of radius a and c respectively.A is sueeounded by a concentric dielectric medium of inner radius a, outer radius b and dielectric constant k. If sphere A is given a charge Q, the potential at the outer surface of the dielectric is

Conducting ball of radius a is surrounded by a layer of dielectric having inner radius a and outer radius b. The dielectric constant is K. The conducting ball is given a charge Q. Write the magnitude of electric field and electric potential at the outer surface of the dielectric.

Charge Q is given to a spherical conductor of radius R. It is surrounded by a concentric conducting shell of inner radius a and outer radius b. Corresponding electric field diagram will 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)

A metal sphere of radius R carrying charge q is surrounded by a thick concentric metal shell of inner and outer radii a and b respectively. The net charge on the shell is zero. The potential at the centre of the sphere, when the outer surface of the shell is grounded will be

In the given diagram, there is a conducting sphere of radius r which is surrounded by a dielectric of relative permittivity epsilon_(r) . If conducting sphere is given charge q, then surface density of polarization charges, on the outer surface of the dielectric layer, is

A conducting sphere of radius alpha has charge Q .on it.It is enclosed by a neutral conducting concentric spherical shell having inner radius 2alpha and outer radius 3 alpha .Find electrostatic energy of system

A metallic spherical shell of radius r_1 is surrounded by another concentric metallic spherical shell of radius r_2 . The space between the two shells is filled with a dielectric of dielectric constant K. If a charge Q is given to the inner shell, the charge appearing on the outer surface of the outer shell is