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  3. AMU Medical

AMU Medical AMU Solved Paper-1997

  • question_answer
    In the given circuit, the rms value of e is 5V and the rms value of votage drop across L is 3 V. The rms value of the voltage across R will be

    A)  2V                 

    B)  3 V

    C)  4 V                

    D)  0 V

    Correct Answer: C

    Solution :

    : \[{{V}^{2}}=V_{L}^{2}+V_{R}^{2}\] \[{{(5)}^{2}}={{(3)}^{2}}+V_{R}^{2}\] or \[V_{R}^{2}=25-9=16={{(4)}^{2}}\]or \[{{V}_{R}}=4\]volt.


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