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Q#1
Stability
GATE EC 2024
MCQ
+1 mark
-0.33 marks
In the feedback control system shown in the figure below 
.
R(s), Y(s) and E(s) are the Laplace transforms of r(t), y(t), and e(t), respectively. If the input r(t) is a unit step function, then ________.
does not exist, e(t) is oscillatory
Explanation:
Here, 
i.e inner product 
outer product
System is marginally stable.
oscillatory system
doesn't exist
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