engineering physics MCQ #219

In an AC circuit, impedance is 20 Ω and resistance is 16 Ω. Find net reactance.

engineering physics MCQ #219

  1. Question 1

    Q1. In an AC circuit, impedance is 20 Ω and resistance is 16 Ω. Find net reactance.

    • A) 4 Ω
    • B) 12 Ω
    • C) 16 Ω
    • D) 20 Ω

    Answer: 12 Ω

    Explanation: Use Z = √(R² + X²), where Z = 20 Ω and R = 16 Ω. So, X = √(Z² - R²) = √(400 - 256) = √144 = 12 Ω.