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

  • question_answer
      In the shown arrangement of the experiment of the meter bridge if AC corresponding to null deflection of galvanometer is x, what would be its value if the radius of the wire AB is doubled [IIT-JEE (Screening) 2003]

    A)            x

    B)            x/4

    C)            4x

    D)            2x

    Correct Answer: A

    Solution :

               Balancing length is independent of the cross sectional area of the wire.


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