Also, as alternating
currents (and voltages) are periodic and vary with time the “effective” or
“RMS”, (Root Mean Squared) value given as Irms produces the same average power
loss equivalent to a DC current Iaverage . Current sources are the opposite to
voltage sources in that they like short or closed circuit conditions but hate
open circuit conditions as no current will flow.
Using the tank of water
relationship, current is the equivalent of the flow of water through the pipe
with the flow being the same throughout the pipe. The faster the flow of water
the greater the current. Note that current cannot exist without voltage so any
current source whether DC or AC likes a short or semi-short circuit condition
but hates any open circuit condition as this prevents it from flowing.
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