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NEET Sample Paper NEET Sample Test Paper-91

  • question_answer
    A shunt of resistance \[1\,\,\Omega \] is connected across a galvanometer of \[120\,\,\Omega \] resistance. A current of 5.5 ampere gives full scale deflection in the galvanometer. The current that will give full scale deflection in the absence of the shunt is nearly:

    A) 5.5 ampere       

    B)        0.5 ampere

    C) 0.004 ampere

    D)        0.045 ampere

    Correct Answer: D

    Solution :

    [d] The current that will given full scale deflection in the absence of the shunt is nearly equal to the current through the galvanometer when shunt is connected i.e. \[{{I}_{g}}\] As \[{{I}_{g}}=\frac{IS}{G+S}\] \[=\frac{5.5\times 1}{120+1}=0.045\,\,ampere.\]


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