MDCAT Physics MCQ #75

A three-phase AC system delivers more power than single-phase. What is the key advantage of this configuration?

MDCAT Physics MCQ #75

  1. Question 1

    Q1. A three-phase AC system delivers more power than single-phase. What is the key advantage of this configuration?

    • A) It eliminates reactive power.
    • B) Phases are 120° apart, providing constant power.
    • C) It uses fewer conductors for transmission.
    • D) Motors run more efficiently in reverse.

    Answer: Phases are 120° apart, providing constant power.

    Explanation: 120° phase separation ensures continuous power delivery. A is incorrect because reactive power still exists.