In the figure shown, a circuit contains two identical resistors with resistance R = 5Ω and an inductance with L = 2mH. An ideal battery of 15 V is connected in the circuit. What will be the current through the battery long after the switch is closed?

Question

In the figure shown, a circuit contains two identical resistors with resistance R = 5Ω and an inductance with L = 2mH. An ideal battery of 15 V is connected in the circuit. What will be the current through the battery long after the switch is closed? (A) 6A (B) 7.5A (C) 5.5A (D) 3A

Tardigrade Admin · Accepted Answer

Ideal inductor will behave like zero resistance long time after switch is closed I = (2ε/R) = (2×15/5) = 6A

Q. In the figure shown, a circuit contains two identical resistors with resistance $R = 5Ω$ and an inductance with $L = 2 m H$ . An ideal battery of $15 V$ is connected in the circuit. What will be the current through the battery long after the switch is closed?

6A

7.5A

5.5A

3A

Ideal inductor will behave like zero resistance long time after switch is closed
$I = \frac{2 ε}{R} = \frac{2 \times 15}{5} = 6 A$

Q. In the figure shown, a circuit contains two identical resistors with resistance R=5Ω and an inductance with L=2mH. An ideal battery of 15V is connected in the circuit. What will be the current through the battery long after the switch is closed?

6A

7.5A

5.5A

3A

Ideal inductor will behave like zero resistance long time after switch is closed I=R2ε​=52×15​=6A

Q. In the figure shown, a circuit contains two identical resistors with resistance $R = 5Ω$ and an inductance with $L = 2 m H$ . An ideal battery of $15 V$ is connected in the circuit. What will be the current through the battery long after the switch is closed?

Ideal inductor will behave like zero resistance long time after switch is closed
$I = \frac{2 ε}{R} = \frac{2 \times 15}{5} = 6 A$