Current Electricity Charging Discharging Of Capacitors Question 147

Question: 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]

Options:

A) Zero

B) 2 amp from A to B

C) 2 amp from B to A

D) None of the above

Show Answer

Answer:

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