📊 Control System Engineering
Q. Constant M- loci:
  • (A) constant gain and constant phase shift loci of the closed-loop system.
  • (B) plot of loop gain with the variation in frequency
  • (C) circles of constant gain for the closed loop transfer function
  • (D) circles of constant phase shift for the closed loop transfer function
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✅ Correct Answer: (D) circles of constant phase shift for the closed loop transfer function

Explanation: by definition, constant m loci are circles of constant phase shift for the closed loop transfer function.

Explanation by: Mr. Dubey
by definition, constant m loci are circles of constant phase shift for the closed loop transfer function.

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