Which of the following is not a property of an ideal operational amplifier?
(a) Zero input impedance
(b) Infinite bandwidth
(c) Infinite open loop gain
(d) Zero common-mode gain or conversely infinite common mode-rejection.
The question was asked by my school teacher while I was bunking the class.
Origin of the question is The Ideal Operational Amplifiers in chapter Operational Amplifiers of Electronic Devices & Circuits