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Electric Power

Power is the ...

Question

Power is the rate of doing work. If the potential difference is V and current is I, the electrical power P can be calculated as .

P = V / I

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P = I / t

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P = V \times I

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Solution

The correct option is C $P = V \times I$
Power is the rate of doing work.
i.e., $P = \frac{W}{t}$
We know that,
Work done in an electric circuit is $W = Q \times V$ .
$Q = I \times t$
$⟹ W = V \times I \times t$
Thus, electrcial power, $P = \frac{W}{t}$ can be written as $P = V \times I$ .

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Similar questions

V = I R

P

I = \sqrt{\frac{P}{R}}

Which of the following expressions represent(s) the electrical power in a circuit?
(V - Potential difference, I - current and R - Resistance)

V

I

V = 100 sin (100 t) V

I = 100 sin (100 t + \frac{π}{3}) m A

\pm 2

P = I^{2} R

P = V I

= 150 \pm

I = 10 \pm 1

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