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Why is the power factor important in AC circuits?

0 4 Views | Posted 3 months ago
Asked by Shiksha User

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  • P

    Answered by

    Pallavi Pathak | Contributor-Level 10

    3 months ago

    In an AC circuit, the power factor cos? measures the efficiency of power usage. Between the current and voltage, it is the cosine of the phase angle. A power factor of 1 means all the supplied power is used effectively and a low power factor means more energy is wasted.

    Average power:

    P = V rms ⋅ I rms ⋅ cos ? ?

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