Скачать или смотреть What is RMS value? (& why should we care?) | Alternating currents | Physics | Khan Academy

RMS or root mean square current/voltage of the alternating current/voltage represents the d.c. current/voltage that dissipates the same amount of power as the average power dissipated by the alternating current/voltage.
For sinusoidal oscillations, RMS value equals peak value divided by the square root of 2.

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Created by Mahesh Shenoy