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Control Systems
Root Locus Technique
Practice questions from Root Locus Technique.
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Q#1
Root Locus Technique
GATE EC 2025 (Set 1)
MCQ
+1 mark
-0.33 marks
Consider the unity-negative-feedback system shown in Figure (i) below, where gain . The root locus of this system is shown in Figure (ii) below.
For what value(s) of will the system in Figure (i) have a pole at ?
For no positive value of K
For all positive of K
Explanation:
From root locus, it is observed that pole is not lies on the root locus.
Thus, no positive value of exist for system pole at , as no such pole exist for system at .
Hence, option (c) is only correct answer.
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