JEE Main 2021PhysicsElectromagnetic InductionMediumMCQ

JEE Main 2021 — Electromagnetic Induction Question with Solution

JEE Main 2021 (01 Sep Shift 2)

Question

For the given circuit the current i through the battery when the key in closed and the steady state has been reached is

Choose an option

Show full solutionCorrect option: A
Correct answer
A10 A

Step-by-step explanation

In a steady state, the inductor behaves as a conducting wire. So, the equivalent circuit becomes, 

1Req=1R1+1R2+1R3=13+13+13=1⇒Req=1 Ω

so, the circuit becomes, 

⇒I=303=10 A

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About this question

This is a previous-year question from JEE Main 2021, covering the Electromagnetic Induction 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.