Q. What is the value of inductance L for which the current is maximum in a series LCR circuit with C = 10 μF and ω = 1000 s⁻¹ ?
A) 1 mH
B) cannot be calculated unless R is known
C) 10 mH
D) 100 mH
Explanation
[Solution from source] Current is maximum at resonance, ω²LC = 1: L = 1/(ω²C) = 1/(10⁶ × 10 × 10⁻⁶) = 0.1 H = 100 mH. R only sets the height of the peak, not where it occurs. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.