engineering physics MCQ #10

In an AC circuit, the current is wattless if

engineering physics MCQ #10

  1. Question 1

    Q1. In an AC circuit, the current is wattless if

    • A) φ = 0
    • B) φ = π/2
    • C) φ = π
    • D) φ = π/4

    Answer: φ = π/2

    Explanation: Wattless current occurs when φ = π/2, making cos(φ) = 0, thus no power is consumed.