NEET Sample Paper NEET Sample Test Paper-36

  • question_answer
    In an ac circuit, the current is given by \[i=5\,\sin \]\[\left( 100\,t-\frac{\pi }{2} \right)\]and the ac potential is \[V=200\,\sin (100)\]volt. Then the power consumption is

    A)  20 watts    

    B)  40 watts

    C)  1000 watts   

    D)  0 watt

    Correct Answer: D

    Solution :

    \[P={{V}_{i}}\cos \phi \] Phase difference \[\phi =\frac{\pi }{2}\Rightarrow P=zero\]


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