Calculate the energy stored in a capacitor.

Two plates of a parallel plate capacitor have an area of 100 cm^2 each and are separated by 2.5 mm. The capacitor is charged to 200V. Calculate the energy stored in the capacitor.

Why is an insulator sometimes called a dielectric? What is the main difference between free and bound charge? Generally one of the two plates of a Capacitor System is earthed, why? Derive the expression for the energy stored in a charged capacitor.

Deduce the expression of energy stored in a capacitor.

A 100pF capacitor is charged by a potential difference of 100V. What is the amount of charge storeD? What is the electrostatic energy stored in the capacitor?

What form of energy is stored in the capacitor?

A 400 pF capacitor is charged by a 100V battery. How much electrostatic energy is stored in the capacitor?

How does energy stored in a inductor?