JEE Main 2024PhysicsAlternating CurrentMediumMCQ

JEE Main 2024 — Alternating Current Question with Solution

JEE Main 2024 (01 Feb Shift 1)

Question

In series LCR circuit, the capacitance is changed from C to 4C. To keep the resonance frequency unchanged, the new inductance should be :

Choose an option

Show full solutionCorrect option: C
Correct answer
Creduced by 34L

Step-by-step explanation

As resonance frequency remains unchanged, therefore ω'=ω

⇒1L'C'=1LC

⇒ L'C'=LC

⇒L'4C=LC

⇒L'=L4

∵ Inductance must be decreased by 3L4.

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About this question

This is a previous-year question from JEE Main 2024, 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.