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JEE Main & Advanced Physics Alternating Current / प्रत्यावर्ती धारा Question Bank ac Circuits

  • question_answer
    In an ac circuit, the potential difference across an inductance and resistance joined in series are respectively 16 V and 20 V. The total potential difference across the circuit is [AFMC 1998; BHU 1999]

    A)            20.0 V                                      

    B)            25.6 V

    C)            31.9 V                                      

    D)            53.5 V

    Correct Answer: B

    Solution :

               \[V=\sqrt{V_{R}^{2}+V_{L}^{2}}=\sqrt{{{(20)}^{2}}+{{(16)}^{2}}}=\sqrt{656}=25.6\,\,V\]


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