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Control Systems
Stability

Practice questions from Stability.

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Q#1 Stability GATE EE 2025 (Set 1) MCQ +2 marks -0.66 marks

Let . Then the closed-loop system shown in the figure below, is

stable for all .

unstable for all .

unstable for all .

stable for all .

Explanation:

Open Loop Transfer function,

 

for unity feedback system, characteristic equation is:

 

 

 

 

for stable system,  and

 

From all options, unstable for all  is correct.