So I have started learning about Operational Amplifiers. In case of idea Op-Amps, Vd=0 as amplification is very large and Vo is limited by Vcc(the supply voltage).
Vout= - (Rf/Rin) * Vin which I understand perfectly.
But I have 2 doubts :
1.What happens physically if we remove Rin i.e Rin tends to zero ? By the formula , Vout should become infinite . Does it happen really?
2.In an ideal op-amp , voltage at positive terminal=voltage at negative terminal but if we remove Rin , voltage at + terminal=Vin and voltage at negative is 0 which is kind of paradoxical.
What is the explanation here?