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Byju's Answer
Standard IX
Physics
Power
An electric h...
Question
An electric heater uses 600 kJ of electrical energy in 5 minutes. Calculate its power rating.
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Solution
Work
= 600kJ
= 600000J
Time
= 5 minutes
= 5 x 60= 300 seconds
Power = Work/Time
= 600000/300
= 2000 W or 2kW
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