The energy unit defined as energy delivered in one hour at a rate of one watt is which?

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Multiple Choice

The energy unit defined as energy delivered in one hour at a rate of one watt is which?

Energy is power multiplied by time. A watt measures power, so the energy delivered for one hour at one watt is 1 W × 1 h = 1 watt-hour. The watt-hour is the unit for that amount of energy, and it equals 3600 joules. A kilowatt-hour is 1000 watt-hours, a megawatt-hour is 1,000,000 watt-hours, and EMF hour isn’t a standard energy unit.

Energy is power multiplied by time. A watt measures power, so the energy delivered for one hour at one watt is 1 W × 1 h = 1 watt-hour. The watt-hour is the unit for that amount of energy, and it equals 3600 joules. A kilowatt-hour is 1000 watt-hours, a megawatt-hour is 1,000,000 watt-hours, and EMF hour isn’t a standard energy unit.

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