Rms value of dc
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Oct 18, 2019 · Then we can add the squared values together, take the square root of the sum, then divide that by the number of samples. The result is a value called the root mean square (RMS) deviation of the noise or RMS value. The Standard Deviation. Overall, RMS values give us a way to describe how noise signals combine.
For example a lamp connected to a 6V RMS AC supply will light with the same brightness when connected to a steady 6V DC supply. However, the lamp will be dimmer if connected to a 6V peak AC supply because the RMS value of this is only 4.2V (it is equivalent to a steady 4.2V DC).