What is meant by this statement about op-amps?
It means that the output voltage of the op-amp will not depend on what is connected to it.
In other words, on a perfect op-amp, it means the op-amp will supply whatever current is required to keep the output voltage to what it should be.
If you connect a 1kohm &quot;load&quot; or a 10kohm &quot;load&quot; the output voltage will be the same regardless, the op-amp will supply more current to the 1k load to keep the output voltage at the same level as if it were a 10k load.
That said, as long as the output current is within the limits of the op-amp and the supplies.