The electric energy stored in a cube

A cube of edge a is placed at some distance from a long plane sheet of charge having surface density sigma . Find the electric energy stored in the cube.

Deduce an expresison for the electrostatic energy stored in a capacitor of capacitance C and having charge Q. How will the energy stored and the electric field inside the capacitor be affected, when it is completely filled with a material of dielectric constant k?

Energy is stored in

Energy is stored in

The capacity of a parallel plate air capacitor is 10muF and it is given a charge of 40muC . The electrical energy stored in the capacitor is

Identify the situations where electrical energy is stored up as chemical en- ergy.

A cube of marble of each side 5m long is placed in electric field of intensity of 3kV//m . The amount of electrostatic energy stored in marble of dielectric constant 8 is

A cube of marble, of volume 1 cm^(3) and permittivity 75 pF/m, is in an electric field of intensity 200 V/m. The electrostatic energy in the cube is