JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2009

  • question_answer
        If\[\phi \]is phase difference between current and voltage the wattless component of current is

    A)  \[I\,\cos \phi \]                               

    B)  \[I\sin \phi \]

    C)  \[I\tan \phi \]                                  

    D)  \[I{{\cos }^{2}}\phi \]

    Correct Answer: B

    Solution :

                    \[{{I}_{v}}\sin \phi \]component of current gives no power consumption and hence, is called wattles current.


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