Question

Define the commercial unit of electricity

Answer 1

1. Electric power is defined as the rate of consumption of energy.
2. $Power\left(P\right)=\frac{Electricenergy\left(E\right)}{time\left(T\right)}$.
3. According to the above formula,$Electricenergy\left(E\right)=power\left(P\right)\times time\left(T\right)$
4. If the power in watts and time is in seconds, then the energy consumed is in joules.
5. Commercially, we use Kilowatt-hour (KWh) for electric energy consumption.
6. $1KWh=1000Wh=3.6\times {10}^{6}J.$
7. 1 KWh is also known as 1 unit of electricity consumed in the circuit.

Hence, 1KWh is the electrical energy consumed when 1000 watts of power is used for 1 hour.