engineering physics MCQ #272

An AC circuit has a resistance of 10 Ω and an inductive reactance of 20 Ω. What is its impedance?

engineering physics MCQ #272

  1. Question 1

    Q1. An AC circuit has a resistance of 10 Ω and an inductive reactance of 20 Ω. What is its impedance?

    • A) 10 Ω
    • B) 20 Ω
    • C) √500 Ω
    • D) 30 Ω

    Answer: √500 Ω

    Explanation: The impedance Z = √(R² + XL²) = √(10² + 20²) = √500 Ω.