physcial science

Does a 5000-watt heater use twice the energy of a 2500-watt heater. What calculation do I need to do to compare these and answer the question?

It does while it is on. But if it is controlled by a thermostat, it needs to be on only half as long to maintain the same temperature, so the net energy consumption opver time will be the same.

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asked by dave

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