Question

$1$ unit is equal to?

Answer 1

Solution.

We know that,

$1$ unit of electric energy is equal to Kilowatt Hour

$1\mathrm{unit}=1\mathrm{kwh}$

Since $1000$ Watts or $1$ Kilowatt of power for $1$ hour or $3600$ seconds is,

$$\begin{gathered} 1\mathrm{unit}=1000\mathrm{W}\times 3600\mathrm{s} \\ \therefore 1\mathrm{kWh}=3.6\times {10}^6\mathrm{J} \end{gathered}$$

Hence, $1$ unit is equal to $3.6\times {10}^6\mathrm{J}$.