Question

). L-R परिपथ का शक्ति गुणांक होता है-​

Answer 1

The power factor is equal to the cosine of the angle.

Explanation:

Power factor :

In the AC circuit , the power factor is the ratio of real power and apparent power.

Real power represents the capacity of the electricity. It is equal to the product of current and voltage.

Apparent power is equal to the product of rms current and voltage.

In mathematical term,

$P=S\cos\theta$

$\cos\theta=\dfrac{P}{S}$

Where, P = real power

S = apparent power

$\theta$ = phase angle.

The phase angle represents angle between current and voltage vector.

Hence, The power factor is equal to the cosine of the angle.

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Topic : power factor

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