Question:

If the phase angle at gain cross-over frequency of a system is -116°, then the phase margin will be

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Phase margin is always measured from −180°, so use PM = 180° + (Phase at gain crossover).
Updated On: May 23, 2025
  • −64°
  • 116°
  • 64°
  • −116°
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The Correct Option is C

Solution and Explanation

Phase margin (PM) = 180° + Phase at gain crossover frequency PM = 180° − 116° = 64°
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