Q38 of 54 Page 135

What is electrical power? How the electricity consumed in our houses is calculated? Explain with example.

The rate of transformation of electric energy in an electric circuit is called electric power.

The electricity consumed in our houses is measured in kilowatt-hour (kWh), also called units.


Example: If a 60 W bulb is used for 10 hrs then the electricity consumed by the bulb is


= 0.6 kWh = 0.6 units


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