Question

$1$ kWh = ___________ J.

Answer 1

Step 1: Given data

Energy $=1kWh$

Step 2: Convert kWh into Joule

We know that $Energy=Power\times Time$ where energy is in joule, power is in Watt and time is in seconds. So, we get,

$$\begin{gathered} \Rightarrow Energy=1kWh \\ \Rightarrow Energy=1000\times 60\times 60J \end{gathered}$$

$\Rightarrow Energy=36,00,000J$

$\Rightarrow Energy=3.6\times {10}^{6}J$

Hence, $1kWh=3.6\times {10}^{6}J$