Electronics and Communication Engineering - Automatic Control Systems - Discussion

Discussion Forum : Automatic Control Systems - Section 10 (Q.No. 34)
34.
Which of the following features is not associated with Nichols chart?
(0 dB, -180°) point on Nichols chart represent critical Point (-1, 0)
It is symmetric about -180°
M loci are centred about (0 dB, -180°) point
The frequency at intersection of G(jω) locus and M = +3 dB locus gives bandwidth of closed loop system
Answer: Option
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