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Discussion :: Signals and Systems

  1. An ac network has a power factor of 0.8 lagging for fundamental frequency. If the applied voltage contains thrid and fifth harmonics, the overall power factor will be

    2. A.
    more than 0.8 lagging
    B.
    0.8 lagging
    C.
    less than 0.8 lagging
    D.
    0.8 lagging or less

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    Workspace

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    Answer : Option C

    Explanation :

    As frequency increases, XL decreases and power factor becomes worse.

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