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

  • question_answer
    In the circuit shown in figure, what will be the reading of the voltmeter?

    A) 300 V               

    B) 900 V

    C) 200 V               

    D) 400 V

    Correct Answer: C

    Solution :

    (c) 200 V Here, \[{{V}_{L}}={{V}_{C}}=100\,V,\,V=200V\] As   \[V=\sqrt{V_{R}^{2}+{{({{V}_{L}}-{{V}_{C}})}^{2}}}\] \[\therefore 200=\sqrt{V_{R}^{2}+{{(100-100)}^{2}}}\] or \[{{V}_{R}}=200\,V\]


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