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NEET Sample Paper NEET Sample Test Paper-76

  • question_answer
    A voltmeter has a resistance of G Ohm and range of V volt. The value of resistance used in series to convert it into a voltmeter of range nV volt is

    A)  nG                              

    B)  \[\frac{G}{(n-1)}\]

    C)  \[\left( n-1 \right)G\]                   

    D)  \[\frac{G}{n}\]

    Correct Answer: C

    Solution :

    \[{{I}_{g}}=\frac{V}{G}\] \[R=\frac{nV}{{{\operatorname{l}}_{g}}}\,\,-\,\,G\,=\,\,\frac{nV}{V/G}-G\,\,=\,\,(n-1)\,G\]


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