Question

______ is the rate of energy consumed or supplied by an electrical component in reference to time.
1. Voltage
2. Power
3. Current
4. Frequency

Answer 1

Correct Answer - Option 2 : Power

Power is the rate of energy consumed or supplied by an electrical component in reference to time.

The rate of doing work is power. This is also the rate of consumption of energy.

The rate at which electric energy is dissipated or consumed in an electric circuit is termed electric power.

The power P is given by

P = VI

Or \(P = {I^2}R = \frac{{{V^2}}}{R}\)

The SI unit of electric power is the watt (W)

Watt is the power consumed by a device that carries 1 A of current when operated at a potential difference of 1 V.