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 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 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

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

A point charge Q is placed at the origin . Find the electrostatic energy stored outside the sphere of radius R centred at the origin.

A point charge Q is placed at the origin . Find the electrostatic energy stored outside the sphere of radius R centred at the origin.

A point charge Q is placed at the origin . Find the electrostatic energy stored outside the sphere of radius R centred at the origen.

Find the capacitance of an isolated ball-shaped conductor of radius R_(1) surrounded by an adjacent concentric layer of dielectric with permittivity epsilon and outside radius R_(2) .