Write the commercial unit of energy. If an electric appliance consumes 20 units of electric energy express, it in kWh (kilo – Watt – hour)
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the commercial unit of energy is kilo-watt-hour
1 one kilo-watt-hour simply means one unit.
in joule 1 kilo-watt-hour means 3.6 * 10^6(10 to the power 6) joule (j). Thus kilo-watt-hour is commonly known as unit.
now 20 units means 20 kilo-watt-hour or 20* 3.6 * 10^6 joule ie. 7•2* 10^5 joule.
Explanation:
explanation is the answer itself.
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