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What is the correct expression for power?

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in Physics – Class 11 by (74.2k points)
What is the correct expression for power?

(a) P = dW/dt

(b) P = F * d

(c) P = E

(d) P = dE/dt

I got this question during an online exam.

The query is from Introduction to Work, Energy and Power topic in chapter Work, Energy and Power of Physics – Class 11

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Best answer
Right answer is (a) P = dW/dt

Best explanation: Power is defined as the rate of change of work. Hence, P = dW/dt. Instantaneous power = Force x instantaneous speed. Average power = total work / total time.

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