Given L=1.6 H and C=40 μF=40×10−6 F.
At resonance, the angular frequency is ωr=LC1.
The inductive reactance at resonance is XL=ωrL=LCL=CL.
Substituting the given values:
XL=40×10−61.6
XL=4×10−51.6
XL=4×104
XL=200 Ω
Answer: 200
A series LCR circuit with R=20 Ω, L=1.6 H and C=40 μF is connected to a variable frequency a.c. source. The inductive reactance at resonant frequency is _______ Ω.
Held on 5 Apr 2026 · Verified 6 Jul 2026.
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