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
Critical Thinking
question_answer
In the circuit shown here, E1 = E2 = E3 = 2 V and R1 = R2 = 4 ohms. The current flowing between points A and B through battery E2 is [MP PET 2001]
A) Zero
B) 2 amp from A to B
C) 2 amp from B to A
D) None of the above
Correct Answer:
B
Solution :
The given circuit can be redrawn \[{{E}_{eq}}=\frac{{{E}_{1}}{{R}_{2}}+{{E}_{2}}{{R}_{1}}}{{{R}_{1}}+{{R}_{2}}}=\frac{2\times 4+2\times 4}{4+4}=2V\] and \[{{R}_{eq}}=\frac{4}{2}=2\Omega \]. Current \[i=\frac{2+2}{2}=2A\] from A to B through E2