Question

$1KWh=\_\_\_\_\_\_\_\_J.$

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 Watt-hour and Kilowatt-hour (KWh) for electric energy.

$$\begin{gathered} 1KWh=1000W\times 1h \\ =1000W\times 3600s \\ =3.6\times {10}^{6}J. \end{gathered}$$

1 KWh is also known as 1 unit of electricity consumed in the circuit.

Hence, $1KWh=\mathbf{}\mathbf{3}\mathbf{.}\mathbf{6}\mathbf{\times }{\mathbf{10}}^{\mathbf{6}}J.$