Figure shows a circuit contains three identical resistors with resistance R = 9.0 ohms each, two identical inductors with inductance L = 2.0 mH each, and an ideal battery with emf= 18 V. The current 'i' through the battery just after the switch closed is - Noon Academy

Figure shows a circuit contains three identical resistors with resistance R = 9.0 ohms each, two identical inductors with inductance L = 2.0 mH each, and an ideal battery with emf= 18 V. The current ‘i’ through the battery just after the switch closed is

Physics | Physics

Figure shows a circuit contains three identical resistors with resistance R = 9.0 ohms each, two identical inductors with inductance L = 2.0 mH each, and an ideal battery with emf= 18 V. The current ‘i’ through the battery just after the switch closed is

(1) 0.2 A (2) 2 A

(3) 0 ampere (4) 2 mA

Solution: Answer (2)

At t = 0, no current flows through R1 and R3

\ I = e/R₂ =18 / 9 = 2 A

i

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