" The energy density stored in the electric field of field strength E between two plates of capacitor is "

The electric field (vec( E)) between two parallel plates of a capacitor will be uniform if.

The electrical energy density (mu) stored in an electric filed intensity E is

Compare the expression for magnetic energy density with electrostatic energy density stored in the space between the plates of a parallel plate capacitor.

The plates of a paralllel plate capacitor have an area of 90 cm^(2) each and are separated by 2.5mm. The capacitane is charged by connecting it to a 400V supply. (a) How much electrostatic energy is stored by the capacitor ? (b) View this energy as stored in the electrostatic field between the plates, and obtain the energy per unit volume (u). Hence arrive at a realtion between U and the magnitude of electric field E between the plates.