Write the commercial unit of electrical energy. Derive the relation between the commercial unit of energy and b Joule. What is meant by the statement that the wattage of an electric iron is 1000w.
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The commercial unit of electrical energy is kWh.
The statement"wattage of an electric iron is 1000W" means that the electric iron uses 1000W power in 1hr
The statement"wattage of an electric iron is 1000W" means that the electric iron uses 1000W power in 1hr
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commercial unit of energy is kWh
1kWh =1000w×3600sec
=3.6×10to the power 6
1kWh =1000w×3600sec
=3.6×10to the power 6
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