Inductors Store Energy. The magnetic field that surrounds an inductor stores energy as current flows through the field. If we slowly decrease the amount of current, the magnetic field begins to collapse and releases the energy and the inductor becomes a current source.

How energy is stored in capacitor and inductor?

The potential energy in a capacitor is stored in the form of electric field, and the kinetic energy in an inductor is stored in the form of magnetic field. In summary, inductor acts as inertia which reacts against the change in velocity of electrons, and capacitor acts as spring which reacts against the applied force.

What happens to the energy in the inductor?

The energy stored in the inductor is dissipated in this spark. Summary: An inductor doesn't "want" the current to be interrupted and therefore induces a voltage high enough to make the current continuing.