Electronics and Communication Engineering - Automatic Control Systems - Discussion

4. 

Whether a linear system is stable or unstable that it

[A]. is a property of the system only
[B]. depends on the input function only
[C]. both (a) and (b)
[D]. either (a) or (b)

Answer: Option A

Explanation:

Stability is a property of the system only.


Harsh said: (Dec 7, 2014)  
Why stability depends on system property?

Sazuddin said: (Aug 13, 2016)  
I think answer C is correct because system stability also depends on input in terms of phase and gain margin if you increase phase or gain from the calculated margin than the system will move toward instability.

Vicky said: (Dec 11, 2016)  
Stability only depends on bounded input and asymptotic stability.

Deepak Kumar Chourasia said: (Mar 3, 2018)  
I think the answer for that given question is an option is correct because for the system to be stable and linear, the input signal is very important and the system depends on the input.

Anargul said: (Nov 15, 2018)  
I think for a system to be stable it must be;
1) BIBO Stable i.e. bounded input will produce bounded output.
2) Asymptotic Stable and these two properties depend upon a system only not upon input function. So the option A is correct.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.