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JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर Question Bank Kirchhoff's Law, Cells

  • question_answer
    The e.m.f. of a cell is E volts and internal resistance is \[r\] ohm. The resistance in external circuit is also\[r\] ohm. The p.d. across the cell will be                     [CPMT 1985; NCERT 1973]

    A)                    E/2

    B)                                      2E

    C)                    4E                                      

    D)            E/4

    Correct Answer: A

    Solution :

               Since both the resistors are same, therefore potential difference \[=V+V=E\] Þ \[V=\frac{E}{2}\]


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