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(a, Commercial Unit of Energy, , — Joule is very small unit of energy and it is, inconvenient to use it where a large quantity of, energy is involved., , — For commercial purpose, bigger unit of energ, is Kilotwatt hour (KWh)., , Ad closed by Google, , 1KWh: 1 KWh is the amount of energy consumed, when an electric appliance having a power, rating of 1 Kilowatt is used for 1 hour., , Relation between Kilowatt hour and Joule, , — 1Kilowatt hour is the amount of energy [, consumed at the rate of 1 Kilowatt for 1 hour., 1 Kilowatt hour =1 Kilowatt for 1 hour, , alii ate ee ati mee

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1KWh: 1 KWh is the amount of energy consur, when an electric appliance having a power, rating of 1 Kilowatt is used for 1 hour., , Relation between Kilowatt hour and Joule, , — 1Kilowatt hour is the amount of energy, consumed at the rate of 1 Kilowatt for 1 hour., 1 Kilowatt hour =1 Kilowatt for 1 hour, , = 1000 Watt for 1 hour, , = 1000 Watt x 3600 seconds (60 x 60 second:, hour), , = 36,00,000 Joules, , “. 1KWh =3.6 x 10® J =1 unit, , II O <