CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2008

  • question_answer
    The value of alternating emf E in the given circuit will be

    A)  220 V                                   

    B)  140 V

    C)  100 V                                   

    D)  20 V

    Correct Answer: C

    Solution :

    For series LCR circuit                                 \[V=\sqrt{V_{R}^{2}+{{({{V}_{L}}-{{V}_{C}})}^{2}}}\]                                 \[=\sqrt{{{(80)}^{2}}+{{(40-100)}^{2}}}\]                                 \[=100\,V\]


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