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

  • question_answer
    A galvanometer coil of resistance 50 W, show full deflection of \[100\mu A\]. The shunt resistance to be added to the galvanometer, to work as an ammeter of range 10 mA is [Pb PET 2000]

    A)         5 W in parallel

    B)                       0.5 W in series

    C)         5 W in series                 

    D)         0.5 W in parallel

    Correct Answer: D

    Solution :

                                             \[S=\left( \frac{{{i}_{g}}}{i-{{i}_{g}}} \right)\,\times G\]\[=\frac{100\times {{10}^{-6}}}{(10\times {{10}^{-3}}-100\times {{10}^{-6}})}\times 50\]»\[0.5\,\Omega \] (in parallel)


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