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Watts
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Watts

Definition: A watt (W) is the SI unit of power, defined as one joule per second (1 J/s). It represents the rate at which energy is transferred or converted.

History: The watt is named after Scottish engineer **James Watt**, whose work on steam engines revolutionized energy efficiency. It was officially adopted as the unit of power in the **International System of Units (SI)** in 1960 and is widely used in electricity, mechanics, and thermodynamics.

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