| Alternating Current (AC), Voltage, Sinusoidal Waveform |
Alternating Current (AC), Voltage, sinusoidal Waveform,
Alternating current (AC) unlike Direct current (DC) flows first
in one direction then in the opposite direction. Current amperage The is
function of time. Direct current (DC) amperage is constant.
The most common AC waveform is a sine (or sinusoidal) waveform.
See figure 1.
Figure 1.
Instantaneous Current and Voltage
where I = instantaneous current
in amperes
Ip = the maximum, or peak, current in amperes
f - Frequency. The frequency is the number of
cycles that is completed each second. Unit of measure: hertz (Hz)
t - time
Other notation
q =
the angular displacement in degrees or radians
The circuits illustrating all folowing electric
circuits laws and circuit analysis techniques are included into Circuit Magic
installation Visit main page to learn about Circuit Magic. (Symbolic electrical
circuits simulation software to analyse circuits using Kirchhoff's Laws & other
methods.)
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