Notes:
A similar method is employed for output impedance analysis. The signal generator is set to a current source of
magnitude 1 amp. Here it is feeding directly into a 10 k load resistor so a high value pararell shunt resistance is
not required. An ac analysis is performed at point A in the diagram above, results are displayed below:

It is worth mentioning that the output impedance calculated is the ac impedance looking into the output of the
circuit. Calculation by hand , or using a meter is tedious and would probaly take over an hour, here this can be
reduced to a few seconds.
NOTE: I am using circuit maker version 4, these methods should be compatible with both earlier and later
versions of circuit maker.