the square root of the average of the squares of a set of numbers or quantities
the root mean square of 1, 2, and 4 is √[(12 + 22 + 42)/3] = √7
Abbreviation: rms
RMS in British English
abbreviation for
1.
Royal Mail Service
2.
Royal Mail Steamer
RMS in American English
1.
Royal Mail Service
2.
Royal Mail Ship
rms in American English
root mean square
RMS in Electrical Engineering
(ɑr ɛm ɛs) or root-mean-square
abbreviation
(Electrical engineering: Circuits, Electrical power, Computing and control)
The RMS value of a periodic waveform is the same as the effective value of the waveform, and is obtained by taking the square root of the mean of the squared waveform.
Anytime you hear about a voltage value for your house wiring or somewhere on thepower grid, you can safely assume the value is in RMS form.
The RMS voltage is proportional to the temperature of the resistor and how resistive it is.
The RMS value of a periodic waveform is the same as the effective value of the waveform,and is obtained by taking the square root of the mean of the squared waveform.