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Electricity flows in two ways: either in an alternating current (AC) or in a direct current (DC). Electricity or "current" is nothing but the movement of electrons through a conductor, like a wire. The difference between AC and DC lies in the direction in which the electrons flow. In DC, the electrons flow steadily in a single direction, or "forward." In AC, electrons keep switching directions, sometimes going "forward" and then going "backward."
Alternating current is the best way to transmit electricity over large distances.
AC stands for 'alternating current' while DC stands for 'direct current.' The difference between the two is that direct current normally flows steadily in one direction while alternating current changes direction. Another difference is that AC is generated from electric outlets while DC is generated from batteries and adapters.
dc has no frequeny
A DC circuit comes from continuos voltage rectifier and is generated its main current from a constant voltage supply.
Same other colleagues I say too there is no frequency in this tipe of current or voltage.
The value of peak voltage or current is the same that the value of rms, I mean is the same along full period of waves.
We can obtain DC current or continuous voltage from AC current with the polite rectifier, and opposite case too.
We can make several phases sistems with AC but opposite I only know monophase circuits of DC, and really I don´t imagine how to do several phases sistems with contiuous voltage.
AC circuit is about frequency, different circuit behaviors for varyious frequency.
DC circuit is has no frequency and the current flowing in one direction.
