VIT Engineering VIT Engineering Solved Paper-2011

  • question_answer
    An ammeter reads up to 1 A. Its internal resistance is \[0.81\Omega \]. To increase the range to 10 A, the value of the required shunt is

    A)  \[0.09\Omega \]

    B)  \[0.03\Omega \]

    C)  \[0.3\Omega \]

    D)  \[0.9\Omega \]

    Correct Answer: A

    Solution :

    Shunt \[S=\frac{G{{I}_{g}}}{I-{{I}_{g}}}\] \[=\frac{0.8\times 1}{10-1}=\frac{0.81}{9}\Omega =0.09\Omega \]


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