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 voltmeter having resistance of 50 × 103 ohm is used to measure the voltage in a circuit.  To increase the range of measurement 3 times the additional series resistance required is                                             [MP PET 2001]

    A)         105 ohm

    B)                        150 k.ohm

    C)         900 k.ohm                     

    D)         9 × 106 ohm

    Correct Answer: A

    Solution :

                                             \[R=G(n-1)=50\times {{10}^{3}}(3-1)={{10}^{5}}\Omega \].


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