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Electricity — Science STD 10 — Question

Tamilnadu BoardEnglish MediumSTD 10ScienceElectricity1 Mark
Question
Define the unit of electric power.
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Answer

The SI unit of electric power is watt. When a current of 1 ampere passes across the ends of a conductor, which is at a potential difference of 1 volt, then the electric power is
P = 1 volt × 1 ampere = 1 watt.

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