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Asked by akshay_mehra07 | 25th Mar, 2009, 01:35: PM

Expert Answer:

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

Solution:

Rate at which heat is developed=I2 R/t =(15)2 *8/(2*3600)= 0.25 W

Answered by  | 27th Mar, 2009, 11:47: AM

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