A room heater is rated 750 W and is used for 4 hours each day for 20 days.

PHYSICS · Multi-part · CBSE · Physics · Electricity · Electricity

Problem

A room heater is rated 750 W and is used for 4 hours each day for 20 days. (i) Find the total electrical energy consumed in kilowatt-hours. (ii) Express the same amount of energy in megajoules (MJ).

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