RAJASTHAN PMT Rajasthan - PMT Solved Paper-2009

  • question_answer
    The power factor of a good choke coil is

    A)  nearly zero      

    B)  exactly zero

    C)  nearly one       

    D)         exactly one

    Correct Answer: A

    Solution :

    For a good choke coil inductance is very high and resistance is very low. Therefore,                 power factor\[=\cos \phi =\cos {{90}^{o}}=0\] Therefore, power factor for a good choke coil is nearly zero.


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