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 3× in all

6 Apr 2024, Shift 2 · Q59For a given series LCR circuit it is found that maximum current is drawn when value of variable capacitance is 2.5 nF. If resistance of…EasyNumerical value
25 Jul 2022, Shift 1 · Q42To increase the resonant frequency in series LCR circuit,EasySingle correct

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 42 of the 174 JEE Main shifts held from 2017 to 2026.