MDCAT Physics MCQ #535

Why is AC current preferred over DC for long-distance power transmission?

MDCAT Physics MCQ #535

  1. Question 1

    Q1. Why is AC current preferred over DC for long-distance power transmission?

    • A) Easier to transform voltages
    • B) Lesser ohmic losses
    • C) No energy storage in wires
    • D) Lower skin effect

    Answer: Easier to transform voltages

    Explanation: Transformers require AC. Option B describes reduced losses via higher voltage.