MDCAT Physics MCQ #85

Why does a transformer fail to operate with DC input?

MDCAT Physics MCQ #85

  1. Question 1

    Q1. Why does a transformer fail to operate with DC input?

    • A) Magnetic core saturation
    • B) No changing magnetic field
    • C) Winding resistance overheats
    • D) Insulation breaks down

    Answer: No changing magnetic field

    Explanation: Transformer requires changing magnetic field for induction. DC provides constant field (option A is indirect).