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RMS-DC-Slide2

The first question this presentation will answer is, “Why is RMS widely used?”. The answer is that RMS is the most useful measurement of the amplitude of a time varying signal. The product of the RMS values of the current and voltage of any waveform is equal to the heating power of that waveform. In other words, the RMS values of voltage and current are equivalent to their DC values. For example, the total power of electric energy is the product of its RMS voltage and RMS current. The standard deviation of Gaussian distribution noise is its RMS value.

PTM Published on: 2012-05-01