Question

What is the derivation of formulae for positive half and negative half of Alternating Current (AC)?

Answer 1

The term AC or to give it its full description of Alternating Current, generally refers to a ... polarity every half cycle alternating between a positive maximum value and a negative maximum ...An alternating function or AC Waveform on the other hand is defined as one that varies in both magnitude and direction in more or less an even manner with respect to time making it a “Bi-directional” waveform. An AC function can represent either a power source or a signal source with the shape of an AC waveform generally following that of a mathematical sinusoid being defined as: A(t) = Amax*sin(2πƒt).