12th Class Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank MCQ - Current Electricity

  • question_answer
    A potentiometer can measure emf of a cell because:                                                            (CBSE 2020)

    A) the sensitivity of potentiometer is large

    B) no current is drawn from the cell at balance

    C) no current flows in the wire of potentiometer at balance

    D) internal resistance of cell is neglected

    Correct Answer: C

    Solution :

    (c) no current flows in the wire of potentiometer at balance.


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