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CMC Medical CMC-Medical VELLORE Solved Paper-2013

  • question_answer
    In an AC circuit, the potential difference across an inductance and resistance connected in series are 16 V and 20 V respectively. Total potential difference across the circuit will be

    A)  10.0V                   

    B)  20.6V

    C)  25.6V                   

    D)  30.6V

    Correct Answer: C

    Solution :

                    Here, potential difference across inductance \[{{V}_{L}}=16\,V\] Potential difference across resistance \[{{V}_{R}}=20\,V\] The total potential across circuit \[{{E}_{V}}=\sqrt{V_{L}^{2}+V_{R}^{2}}\]      \[=\sqrt{{{16}^{2}}+{{20}^{2}}}\]      \[=25.6\,V\]


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