Problem 1.26: A current of 4 A passes through a 10 2 resistor. Calculate :
(a) the power developed by the resistor (b) the energy dissipated in 3 minutes.

Problem 1.27: A heater is given a current of 10 A from a 250 V source for 15 hours. Determine the energy consumed by the heater in kilowatthours.


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