Question

When does a system said to be stable?

(a) Output reaches a minimum value at finite time

(b) Output reaches a maximum value at any time

(c) Output reaches a fixed value at finite time

(d) Output reaches a fixed value at any time

This question was posed to me during an online interview.

Question is taken from Closed-Loop Frequency Response and Circuit Stability topic in division Practical Limitations of Op Amp Circuits of Linear Integrated Circuits

Answer 1

Right answer is (c) Output reaches a fixed value at finite time

Delve into insight with: A circuit or a group of circuits connected together as a system is said to be stable, if its output reaches a fixed value in a finite time.