engineering physics MCQ #49

In an LCR circuit, the voltage across L, C, and R are 20 V, 20 V, and 40 V, respectively. The supply voltage is

engineering physics MCQ #49

  1. Question 1

    Q1. In an LCR circuit, the voltage across L, C, and R are 20 V, 20 V, and 40 V, respectively. The supply voltage is

    • A) 40 V
    • B) 20 V
    • C) 60 V
    • D) 80 V

    Answer: 40 V

    Explanation: V = √(VR² + (VL - VC)²) = √(40² + (20 - 20)²) = 40 V.