JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Different Measuring Instruments

  • question_answer
    \[100\,mA\] current gives a full scale deflection in a galvanometer of \[2\,\Omega \] resistance. The resistance connected with the galvanometer to convert it into a voltmeter to measure \[5\,V\]is                   [MNR 1994; UPSEAT 2000]

    A)                    \[98\,\Omega \]

    B)                                      \[52\,\Omega \]

    C)                    \[50\,\Omega \]         

    D)            \[48\,\Omega \]

    Correct Answer: D

    Solution :

       \[R=\frac{V}{{{i}_{g}}}-G=\frac{5}{100/{{10}^{3}}}-2\]\[=\frac{5000}{100}-2=48\Omega \]


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