2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर

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 batteries A and B each of e.m.f. 2 V are connected in series to an external resistance R = 1 ohm.  If the internal resistance of battery A is 1.9 ohms and that of B is 0.9 ohm, what is the potential difference between the terminals of battery A                                                                        [MP PET 2001]

    A)            2 V

    B)            3.8 V

    C)            Zero

    D)            None of the above

    Correct Answer: C

    Solution :

               \[i=\frac{2+2}{1+1.9+0.9}=\frac{4}{3.8}A\] For cell A \[E=V+ir\] Þ\[V=2-\frac{4}{3.8}\times 1.9=0\].


You need to login to perform this action.
You will be redirected in 3 sec spinner