MDCAT Physics MCQ #216

A 3-phase AC power supply has a line voltage of 440 V. What is the phase voltage?

MDCAT Physics MCQ #216

  1. Question 1

    Q1. A 3-phase AC power supply has a line voltage of 440 V. What is the phase voltage?

    • A) 440 V
    • B) 220 V
    • C) 440/√3 V
    • D) 2 × 220 V

    Answer: 440/√3 V

    Explanation: Phase voltage Vp = Vline / √3, so Vp = 440 / √3 V.