Watt - Wikipedia
The watt (symbol: W) is a unit of power or radiant flux. In the International System of Units (SI), it is defined as a derived unit of (in SI base units)   1 kg⋅m 2 ⋅s −3 or, equivalently,  1 joule per second. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century ...
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