A point charge `q` is located at the centre of the spherical layers of uniform isotropic dielectric with relative permittivity `K`.The inside radius of the layer is equal to `a` and the outside radius is equal to `b`.The electrostatic energy inside the dielectric layer is

A point charge q is located at the centre of the spherical layers of uniform isotropic dielectric with relative permitivity K .The inside radius of the layer is equal to a and the outside radius is equal to b .The electrostatic energy inside the dielectirc layer is

A point charge q = 3.0 m,uC is located at the centre of a spherical layer of uniform isotropic dielectric with permittivity epsilon = 3.0 . The inside radius of the layer is equal to a = 250 mm , the outside radius is b = 500 mm . Find the electrostatic energy inside the dielectric layer.

A point charge q is located at the centre O of a spherical uncharged coducting layer provided with small orifice. The inside and outside radii of the layer are equal to a and b respectively. The amount of work that has to be performed to slowly transfer the charge q from teh point O through the orifice and into infinity is

When electromagnetic waves enter the ionised layer of ionosphere, then the relative permittivity i.e. dielectric constant of the ionised layer

A point charge +q is placed at the centre of a conducting spherical shell of inner radius a and outer radius b. Find the charge appearing on the inner and outer surface of the shell.

A cylindrical capacitor is filled with two cyclindrical layers of dielectric with permittivity espilon_(1) and espilon_(2) . The inside radii of the layers are equal to R_(1) and R_(2) gt R_(1) . The maximum permissible values of electric field strength reaching teh breakdown value for both dielectrics simulttaneously ?