# RMS Amplitudes of voltage

I am looking here at the course of current fluctuations and have calculated the RMS values, but somehow it seems strange to me: with the black line there are small fluctuations, but the RMS value is still comparably large with, for example, the blue... The RMS values are: red:0.83mV blue:0.44 green:0.52 black: 0.31mV

compare with the picute

• Root mean square is just the... Root of the mean square of the sample. Dynamics like "the black squiggles less than the blue" don't play a role. Why do you think they should?
– mmmm
May 14 '21 at 8:23