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  3. CET Karnataka Medical

CET Karnataka Medical CET - Karnataka Medical Solved Paper-2006

  • question_answer
    In a LCR series circuit, the potential difference between the terminals of the inductance is 60 Y between the terminals of the capacitor is 30 V and that across the resistance is 40 V. Then, supply voltage will be equal to:

    A)  50 V

    B)  70 V

    C)  130 V

    D)  10 V

    Correct Answer: A

    Solution :

    In LCR series circuit, \[V=\sqrt{V_{R}^{2}+{{({{V}_{L}}-{{V}_{C}})}^{2}}}\] \[=\sqrt{{{(40)}^{2}}+{{(60-30)}^{2}}}\] \[=\sqrt{1600+900}=\sqrt{2500}\] \[=50V\]


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