engineering physics MCQ #249

In a series LCR circuit, the voltage across the inductor is 20 V, capacitor is 20 V, and resistor is 10 V. The supply voltage is

engineering physics MCQ #249

  1. Question 1

    Q1. In a series LCR circuit, the voltage across the inductor is 20 V, capacitor is 20 V, and resistor is 10 V. The supply voltage is

    • A) 10 V
    • B) 20 V
    • C) 30 V
    • D) 50 V

    Answer: 10 V

    Explanation: At resonance, VL = VC, so V = VR = 10 V.