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  3. CET Karnataka Medical

CET Karnataka Medical CET - Karnataka Medical Solved Paper-2015

  • question_answer
    In the circuit shown below, the ammeter and the voltmeter readings are 3 A and 6 V respectively. Then the value of the resistance R is          

    A)  \[>2\Omega \]

    B)  \[\ge 2\Omega \]

    C)  \[2\Omega \]

    D)  \[<2\Omega \]

    Correct Answer: D

    Solution :

    : Case I: If ammeter A and voltmeter V are ideal, then \[R=\frac{6}{3}\frac{V}{A}=2\Omega \] Case II: If ammeter A and voltmeter V has some finite resistance, then \[R<2\Omega \]..


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