Question
Download Solution PDFThe phase margin of a system having the loop transfer function
This question was previously asked in
UPSC ESE (Prelims) Electronics and Telecommunication Engineering 19 Feb 2023 Official Paper
Answer (Detailed Solution Below)
Option 3 : 30°
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ST 1: UPSC ESE (IES) Civil - Building Materials
20 Qs.
40 Marks
24 Mins
Detailed Solution
Download Solution PDFConcept:
Let 's' be
Square on both sides
Let
Solving the equation, we get x = 3, - 4.
So,
Phase margin =
Phase margin = 180 - 150 = 30°
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