For an ideal negative feedback configuration which of the following is true?
(a) There is a virtual open circuit between the input terminals
(b) The closed loop gain for a negative feedback does not depend only on the external parameters
(c) There is a virtual short circuit between the input terminals
(d) There is a virtual ground at the negative input terminal
The question was posed to me by my school teacher while I was bunking the class.
I want to ask this question from The Inverting Configuration in chapter Operational Amplifiers of Electronic Devices & Circuits