EC > GATE 2014 SET-1 > Stability Analysis
Consider the feedback system shown in the figure. The Nyquist plot of G(s) is also shown. Which one of the following conclusions is correct?
A
G(s) is an all-pass filter
B
G(s) is a strictly proper transfer function
C
G(s) is a stable and minimum-phase transfer function
D
The closed-loop system is unstable for sufficiently large and positive k

Correct : d

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