An electric heater is rated 1200 Watt. How many units does it use in 10 hours
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Explanation:
Power = 1200 Watt = 1.2 kWh
Time = 10 hours
Power = Work/Time
1.2 = Work/10
1.2 × 10 = Work
Work = 12 Units.
Work done = Energy consumed
Therefore, the energy consumed is 12 Units.
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