EC > GATE 2017 SET-2 > Nyquist Plot
A unity feedback control system is characterized by the open-loop transfer function
G(s)=10K(s+2)/(s3+3s2+10).
The Nyquist path and the corresponding Nyquist plot of G(s) are shown in the figures below.
If 0<K<1, then the number of poles of the closed-loop transfer function that lie in the right-half of the s-plane is
G(s)=10K(s+2)/(s3+3s2+10).
The Nyquist path and the corresponding Nyquist plot of G(s) are shown in the figures below.
Explanation
Correct : c
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