MDCAT Physics MCQ #530

Why is AC current RMS value used instead of peak value for calculations?

MDCAT Physics MCQ #530

  1. Question 1

    Q1. Why is AC current RMS value used instead of peak value for calculations?

    • A) Matches power dissipation in DC
    • B) Simplifies circuit analysis
    • C) Reduces transformer losses
    • D) Follows wave symmetry

    Answer: Matches power dissipation in DC

    Explanation: RMS equals equivalent DC heating effect. Option B misses physical significance.