Electrical mathQuestion 915 of 1506

A square wave has a peak value of 12 V. What is its RMS value?

8.5 V
12 V
6.9 V
24 V

Show answer

Correct answer: 12 V

For a square wave, the peak, RMS and average values are all the same.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 1.3: Measurements of AC Magnitude

Questions last reviewed: 18 October 2026

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