MDCAT Physics MCQ #221

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

MDCAT Physics MCQ #221

  1. Question 1

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

    • A) 440 V
    • B) 220 V
    • C) 440/√3 V
    • D) 440/(√3 + 1) V

    Answer: 440/√3 V

    Explanation: Line-to-neutral voltage VLN = Vline / √3, so VLN = 440 / √3 V.