JEE Main 2026 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 5 April 2026, Shift 2, Physics Q48

Question 48 of 75 in this shift, Physics question 23 of 25, Section B.

A series LCR circuit with

R=20\ \Omega

L=1.6

H and

C=40\ \mu\mathrm{F}

is connected to a variable frequency a.c. source. The inductive reactance at resonant frequency is __________

\Omega

Official answer

200

NTA final key.

Chapter: Alternating Current
Topic: LCR Resonance
Idea tested: Resonant Frequency Calculation

Same idea in other shifts

Asked 9× in all

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.