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NEET Sample Paper NEET Sample Test Paper-11

  • question_answer
    An AC voltage is applied to a resistance R and an inductor L in series. If R and the inductive reactance are both equal to\[3\,\Omega ,\] the phase difference between the applied voltage and the current in the circuit is

    A) \[\pi /4\]

    B) \[\pi /2\]

    C)  zero     

    D)  \[\pi /6\]

    Correct Answer: A

    Solution :

     \[\tan \phi =\frac{{{X}_{L}}}{R}=\frac{L\omega }{R}\] \[\tan \phi =\frac{3\Omega }{3\Omega }\] \[\tan \phi =1\] \[\phi ={{\tan }^{-1}}(1)\Rightarrow \phi =\frac{\pi }{4}rad\]


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