JEE Main 2023PhysicsAlternating CurrentHardMCQ

JEE Main 2023 — Alternating Current Question with Solution

JEE Main 2023 (29 Jan Shift 2)

Question

For the given figures, choose the correct options:

Choose an option

Show full solutionCorrect option: A
Correct answer
AThe rms current in circuit (b) can never be larger than that in (a)

Step-by-step explanation

For the circuit(a), Z=R=40 Ω. Hence,

Irms=22040=5.5 A

XL=2πfL=2π×50×50×10-3=15.7 Ω and XC=12πfC=12π×50×0.5×10-6=6369 Ω

For the circuit(b), Z=R2+XL-XC2>40 Ω as

XL is not equal to XC. So rms current in (b) can never be larger than (a)

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About this question

This is a previous-year question from JEE Main 2023, 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.