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BCECE Engineering BCECE Engineering Solved Paper-2009

  • question_answer
    A galvanometer of resistance 10 \[\Omega \] gives full-scale deflection when 1 mA current passes through it. The resistance required to convert it into a voltmeter reading upto 2.5 V is

    A)  \[24.9\,\Omega \]                                         

    B)  \[249\,\Omega \]                           

    C)  \[2490\,\Omega \]        

    D)         \[24900\,\Omega \]

    Correct Answer: C

    Solution :

    Required series resistance \[R=\frac{V}{{{I}_{g}}}-G\] \[=\frac{2.5}{1\times {{10}^{-3}}}-10\] \[=2490\,\Omega \]


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