A 660-W electric lheater is hdesigned to...

A 660-W electric lheater is hdesigned to operate from 129V lines. What is the resistance? What current does it draw? What is the rate of production of heat in calories per second? If the line voltage drops to 110V. What is power does the heater takes in waits? (J=4.2 joules per calorie).

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The correct Answer is:

`22Omega`, 5.5A, 157cal/sec, 555W

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