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

  • question_answer
    When a \[12\,\Omega \] resistor is connected with a moving coil galvanometer then its deflection reduces from 50 divisions to 10 divisions. The resistance of the galvanometer is [CPMT 2002; DPMT 2003]

    A)                    \[24\,\Omega \]

    B)                                      \[36\,\Omega \]

    C)                    \[48\,\Omega \]         

    D)            \[60\,\Omega \]

    Correct Answer: C

    Solution :

                 \[{{i}_{g}}=\frac{iS}{S+G}\]Þ\[10=\frac{50\times 12}{12+G}\]Þ\[12+G=60\] Þ \[G=48\Omega \]


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