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True-RMS Measurement: what it is and why it matters

In an alternating voltage signal, the polarity of the voltage is cyclically alternated. In the same way, the direction of an AC (alternating current) current alternates cyclically. Although there are several ways of measuring the magnitude of the alternating signals, the most common and most useful is the RMS (Root Mean Square) measurement.

Date: 2/24/2015


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