Red Seal Electrician Practice
AC theoryQuestion 922 of 1506

An AC voltage in an industrial specification has no qualifier. Which value is normally assumed?

  1. RMS
  2. Peak
  3. Peak-to-peak
  4. Average
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Correct answer: RMS

Unless it says otherwise, voltage and current in AC circuits are taken as RMS.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 1.4: Simple AC Circuit Calculations

Practice ac theory

Questions last reviewed: 18 October 2026