In which of the following forms is the energy stored in a capacitor?

Electric field

The correct answer is Option 1: Electric field

Energy density in an between plates of capacitor is given by $ u = \frac{1}{2} \epsilon_0 E^2$

The formula u = (1/2)ε₀E² correctly represents the energy density (energy per unit volume) in the electric field between the capacitor plates. This formula explicitly shows that the energy stored is proportional to the square of the electric field strength (E).

Hence energy is stored in electric field.

Why not the other options?

• Capacitance: This is a property of the capacitor, not a form of energy.

• Charge: Charge is stored, but it is the separation of charges that creates the electric field. The energy itself is in the field.

• Potential: Potential difference helps determine energy, but the energy is not stored as "potential" itself.