Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2006

  • 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, \[power\text{ }factor=\cos \phi =\cos {{90}^{o}}=0\] Therefore, power factor for a good choke coil is nearly zero.


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