Kirchoff's laws still hold true in phasors,
with no alterations.
Kirchoff's Current Law
Kirchoff's current law states that the amount
of current entering a particular node must equal the amount of current leaving
that node. Notice that KCL never specifies what form the current must be in:
any type of current works, and KCL always holds true.
[KCL With Phasors]
Kirchoff's Voltage Law
KVL states: The sum of the voltages around a
closed loop must always equal zero. Again, the form of the voltage forcing
function is never considered: KVL holds true for any input function.
Thevenin and Norton Circuits
Thevenin Circuits and Norton Circuits can be
manipulated in a similar manner to their DC counterparts: Using the
phasor-domain implementation of Ohm's Law.
It is important to remember that the
does not change in the calculations, although the phase and the
magnitude of both the current and the voltage sources might change as a result
of the calculation.
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