JEE Main 2021PhysicsAlternating CurrentMediumMCQ

JEE Main 2021 — Alternating Current Question with Solution

JEE Main 2021 (24 Feb Shift 2)

Question

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:

Choose an option

Show full solutionCorrect option: C
Correct answer
C2.25 A

Step-by-step explanation

Just after the switch is closed, inductor will behave like infinite resistance (open circuit) so the circuit will look like

i=9R+R=94=2.25 A

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About this question

This is a previous-year question from JEE Main 2021, covering the Alternating Current chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.