Why doesn't a resistor on the non-inverting wire of the op amp affect dc offset (non-inverting op amp)? And does it have any effect on the dc offset of the inverting amplifier.
The reason I ask is because I tested this by simulating a non-inverting amplifier and the result was: no effect on the dc offset.
But I expected change in the dc offset as we model the dc offset source voltage as a dc voltage source attached to the positive terminal of the op amp. And so if there is a resister attached on the same wire than naturally some voltage should drop on that resistor. And thus the voltage see by the positive terminal of the op amp should change.
Why is this conclusion not correct and also explain the "no-change" in the dc offset. ty.