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 moving coil galvanometer has a resistance of \[50\,\Omega \]and gives full scale deflection for 10 mA. How could it be converted into an ammeter with a full scale deflection for 1A               [MP PMT 1996]

    A)                    \[50/99\,\Omega \] in series                                     

    B)            \[50/99\,\Omega \] in parallel

    C)                    \[0.01\,\Omega \] in series                                        

    D)            \[0.01\,\Omega \] in parallel

    Correct Answer: B

    Solution :

                 \[S=\frac{{{i}_{g}}\times G}{i-{{i}_{g}}}=\frac{10\times {{10}^{-3}}\times 50}{1-{{10}^{-3}}\times 10}=\frac{50}{99}\Omega \] in parallel.


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