Characterization of periodic signals
Characterization of measurements and quantities to be measured

The rms valueI of an alternating current is the amplitude of a direct current which, flowing through a resistor R, would give rise to the same power dissipation as the alternating current flowing through the same resistor. Strictly speaking, this equivalence is to be considered for a time corresponding to one period or an integer number of periods. Knowing that the instantaneous power dissipated in a resistor, Ri ^...