JEE Main 2026 Physics question
A series LCR circuit with R=20Ω, L=1.6H and C=40μF is connected to a variable frequency a.c. source. The inductive reactance at resonant frequency is Ω.
Answer: 200
Solution
At resonance, =√(L/C)=√(1.6/40×10⁻⁶)=200Ω.