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JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Self Evaluation Test - Current Electricity

  • question_answer
    A primary cell has an e.m.f. of 1.5 volt. When short-circuited it gives a current of 3 ampere. The internal resistance of the cell is

    A) 4.5 ohm

    B) 2 ohm

    C) 0.5 ohm

    D) (1/4.5) ohm

    Correct Answer: C

    Solution :

    [c] \[r=E/I=1.5/3=0.5ohm.\]


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