NCERT - Science

Book: NCERT - Science

Chapter: 12. Electricity

Subject: Physics - Class 10th

Q. No. 17 of Exercise-Pg-221

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17

An electric heater of resistance 8draws 15 A from the service mains for 2 hours. Calculate the rate at which heat is developed in the heater.

The rate at which heat is developed in the electric heater will be given by the power of the heater.


Thus, the rate at which heat is developed in the heater is 1800 joules per second.


17

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