Question
A series LCR circuit has a resistor of 100 Ω. At
resonance, the voltage across the resistor is 50 V and across the inductor is 30 V. If the angular resonance frequency is 3 × 10⁵ rad/s, what is the inductance L?Solution
We are given a series LCR circuit operating at resonance . At resonance: 
We are given a series LCR circuit operating at resonance . At resonance: 
Voltage across the inductor: 
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