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JEE Main202124 Feb 2021Evening ShiftPhysicsAlternating CurrentActual

The figure shows a circuit that contains four identical resistors with resistance R = 2 . 0 Ω , two identical inductors with inductance L = 2 . 0 mH and an ideal battery with E.M.F. E = 9 V . The current i just after the switch S is closed will be:

Options

  1. A9   A
  2. B3 . 37   A
  3. C2 . 25   A
  4. D3 . 0   A

Correct answer

C. 2 . 25   A

Step-by-step solution

Just after the switch is closed, inductor will behave like infinite resistance (open circuit) so the circuit will look like i = 9 R + R = 9 4 = 2 . 25   A

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