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Figure shows a circuit that contains three identical resistors with resistance R = 9.0 Ω each, two identical inductors with inductance L = 2.0 mH each, and an ideal battery with emf ε = 18 V. The current ‘i’ through the battery just after the switch closed is:
Figure shows a circuit that contains three identical resistors with resistance R = 9.0 Ω each, two identical inductors with inductance L = 2.0 mH each, and an ideal battery with emf ε = 18 V. The current ‘i’ through the battery just after the switch closed is:
The correct option is (2) 2 A.
Explanation:
When switch in closed, then current will only flow through R2. The surface resistor arm
So, i = i1
Hence, i = i1 = E/R2 = 18/9 = 2 A