JEE Main 2021 — Alternating Current Question with Solution
JEE Main 2021 (26 Feb Shift 1)
Question
In a series LCR resonant circuit, the quality factor is measured as . If the inductance is increased by two fold and resistance is decreased by two fold, then the quality factor after this change will be _______
Enter your answer
Show full solutionCorrect answer: 282.84
Correct answer
282.84
Step-by-step explanation
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Alternating Current chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →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.