CBSE Class 10 Answered
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Asked by akshay_mehra07 | 25 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 | 27 Mar, 2009, 11:47: AM
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