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NEET Sample Paper NEET Sample Test Paper-26

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

    A)  \[0.03\Omega \]                     

    B)  \[0.3\Omega \]

    C)  \[0.9\Omega \]                       

    D)  \[0.09\Omega \]

    Correct Answer: D

    Solution :

    As, the formula is, \[S=\frac{{{i}_{g}}G}{i-{{i}_{g}}}=\frac{1\times 0.81}{(10-1)}\] \[\Rightarrow \]               \[S=0.09\Omega .\]


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