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12th Class Physics Alternating Current / प्रत्यावर्ती धारा Question Bank MCQ - Alternating Currents

  • question_answer
    An   AC   source   of   voltage \[V={{V}_{m}}\sin \,\omega t\] is connected across the resistance R as shown in figure. The phase relation between current and voltage for this circuit is:         

    A) both are in phase

    B) both are out of phase by \[90{}^\circ \]

    C) both are out of phase by \[120{}^\circ \]

    D) both are out of phase by \[180{}^\circ \]

    Correct Answer: A

    Solution :

    (a) both are in phase           The given circuit is a pure resistive circuit. In this circuit the voltage and current both are in phase.


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