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प्रश्न
Define 1 watt of power.
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उत्तर
1 watt is the power of an agent which does 1 joule of work in 1 second.
In other words, if the rate of energy use is 1 J s-1, then the power is 1 W.
1 watt = `(1 "joule")/(1 "second")`
or 1 w = 1 Js-1
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