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.

Correct : c
Similar Questions
Consider a closed-loop control system with unity negative feedback and KG(s) in the forward path, where the gain K = 2. The complete Nyquist plot of the transfe...
The Nyquist plot of the transfer function G(s)=K/((s2+2s+2)(s+2)) does not encircle the point (-1+j0) for K=10 but does encircle the point (-1+j0) for K=100 The...
A closed-loop control system is stable if the Nyquist plot of the corresponding open-loop transfer function
Total Unique Visitors
Loading......