Question
One watt is equal to __________?

Answer

  1. One joule per second.
Explanation:
Watt is the SI unit of power.
$\text{Power}=\frac{\text{Work done}}{\text{time}}$.
The SI unit of work done is the same as energy, that is, joule and that of time is seconds. Therefore, one watt is equal to one joule per second.

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