engineering physics MCQ #40

In an AC circuit, the current lags behind the voltage by π/3. The circuit contains

engineering physics MCQ #40

  1. Question 1

    Q1. In an AC circuit, the current lags behind the voltage by π/3. The circuit contains

    • A) only resistance
    • B) resistance and inductance
    • C) resistance and capacitance
    • D) only capacitance

    Answer: resistance and inductance

    Explanation: Current lags voltage in an inductive circuit, so it must contain inductance. The phase difference is given by tan(π/3) = ωL/R.