Science, asked by gurleenkaur85, 10 months ago

write down their expression for the power of an electrical device. what is it unit?????

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Answers

Answered by Anonymous
12

Explanation:

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The rate at which electric energy is dissipated

or consumed in an electric circuit is called

electric power. It's Sl unit is Watt (W).

power = work done / time taken

we know that work done by current | when it flows for time T under potential difference V is

given by :

W = V*I*T joules

so, power = V*I*T / T joules per second Power, P = V*| joules per second or watt

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