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

  • question_answer
    Two cells, e.m.f. of each is \[E\] and internal resistance \[r\] are connected in parallel between the resistance \[R\]. The maximum energy given to the resistor will be, only when [MNR 1988; MP PET 2000; UPSEAT 2001]

    A)                    \[R=r/2\]

    B)                                      \[R=r\]

    C)                    \[R=2r\]                          

    D)            \[R=0\]

    Correct Answer: A

    Solution :

               For maximum energy, we have External resistance of the circuit = Equivalent internal resistance of the circuit i.e. \[R=\frac{r}{2}\]


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