raja.cedt wrote on Nov 3rd, 2012, 6:03am:hello buddypoor,
thanks for the reply. I know that point, but what i mean is can you tel me some circuit where you can apply at the output? Give some example to me . For example in the link you gave, after splitting Z between V1 and V2 who will maintain V1/V2 relation?
Thanks,
Raj.
As you know, negative feedback drastically reduces the output resistance of opamp circuits.
The reduction factor is (1+T) with T=loop gain magnitude. This is the most illustrative example, for my opinion.