Definition: Watt

From Open Energy Information

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Watt

A unit of measure for power, which measures the rate of energy conversion; equal to one joule per second (or 1/746 horsepower); equivalent to one ampere under a pressure of one volt.[1][2]

Wikipedia Definition

The watt (symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer. In SI base units, the watt is described as kg m2 s-3, which can be demonstrated to be coherent by dimensional analysis. The watt is named after James Watt, an 18th-century Scottish inventor., The watt (symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer. In SI base units, the watt is described as kg·m2·s-3, which can be demonstrated to be coherent by dimensional analysis. The watt is named after James Watt, an 18th-century Scottish inventor., The watt (symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer. In SI base units, the watt is described as kg⋅m2⋅s−3, which can be demonstrated to be coherent by dimensional analysis. The watt is named after James Watt, an 18th-century Scottish inventor.


Also Known As
W
Related Terms
ElectricityPowerKilowatt
References
  1. http://www.eia.gov/tools/glossary/index.cfm?id=W#watt
  2. http://needtoknow.nas.edu/energy/glossary/