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MGIMS WARDHA MGIMS WARDHA Solved Paper-2014

  • question_answer
    In a series L-C-R circuit, the voltages across an inductor, a capacitor and a resistor are 30V, 30V and 60 V respectively. The phase difference between the applied voltage and the current in the circuit is

    A)  \[0{}^\circ \]                                     

    B)  \[90{}^\circ \]

    C)  \[30{}^\circ \]                                  

    D)  \[60{}^\circ \]

    Correct Answer: A

    Solution :

                    The phase difference between the applied voltage and the current in the series L-C-R AC circuit is given by \[\tan \phi =\frac{{{V}_{L}}-{{V}_{C}}}{R}\] \[\tan \phi =\frac{30-30}{R}=0\] \[\phi =0{}^\circ \] Therefore, phase angle\[\phi =0{}^\circ \]


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