We know that, Energy = Power × time
Here, Power = 1500 W
Time = 10 hours = (10 × 60 × 60) seconds = 36,000 seconds
Therefore,
The energy used by heater = Power × time
= 1500 × 36,000 J
= 5,40,00,000 J
= 5.4 × 107 J
Question
An electric heater is rated 1500 W. How much energy does it use in 10 hours?
- work and energy CBSE Class 9
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