The heating coil of a hot-water heater has a resistance of
Chapter 17, Problem 17.47(choose chapter or problem)
The heating coil of a hot-water heater has a resistance of 20and operates at 210V. If electrical energy costs $0.080/kWh, what does it cost to raise the 200kg of water in the tank from 15C to 80C? (See Chapter 11.)
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