Question.
A certain household has consumed 250 units of energy during a month. How much energy is this in joules ?
A certain household has consumed 250 units of energy during a month. How much energy is this in joules ?
Solution:
Energy consumed in a month
$=250$ units $=250 \mathrm{kWh}$
$=250 \times 3.6 \times 10^{6}=9 \times 10^{8} \mathrm{~J}$
Energy consumed in a month
$=250$ units $=250 \mathrm{kWh}$
$=250 \times 3.6 \times 10^{6}=9 \times 10^{8} \mathrm{~J}$