I have several about this op-amp curcuit:
i1 flows from Node 1. Does it flow into the op-amp? Or Another current will flow from the output of the op-amp? (I don't think i1 will flow into it, because Node 1 where i1 flows from has 0V and V0 is a positive number.)
- I am confused with the use of this ground symbol. It is not a physical ground where charge can flow out of. It is just a reference point, so we have one less node to calculate the voltage. Potential doesn't matter, the difference does. But i2 and i3 both flow out of the ground/reference. And nothing flows into it. Should either i2 or i3 flow into the reference to preserve the conservation of charge?