JEE Main 2021PhysicsAlternating CurrentEasyMCQ

JEE Main 2021 — Alternating Current Question with Solution

JEE Main 2021 (20 Jul Shift 2)

Question

For a series LCR circuit with R=100 Ω, L=0.5 mH and C=0.1 pF connected across 220 V-50 Hz AC supply, the phase angle between
current and supplied voltage and the nature of the circuit is:

Choose an option

Show full solutionCorrect option: D
Correct answer
D≈90°, predominantly capacitive circuit

Step-by-step explanation

R=100 Ω

XL=ωL=50π×10-3

XC=1ωC=1011100π

XC≫XL

and XC-XL≫R

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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.