engineering physics MCQ #299

The voltage and current in an AC circuit are given by V = 100 sin(100t) and I = 2 sin(100t + π/4). What is the power factor?

engineering physics MCQ #299

  1. Question 1

    Q1. The voltage and current in an AC circuit are given by V = 100 sin(100t) and I = 2 sin(100t + π/4). What is the power factor?

    • A) 0.707
    • B) 0.5
    • C) 1
    • D) 0

    Answer: 0.707

    Explanation: Power factor = cos(φ), where φ = π/4. So, cos(π/4) = 0.707.