B-8-18. Consider the closed-loop system shown in Figure 8-118. G(s) has no poles in the right-half s plane. If the Nyquist plot of G(s) is as shown in Figure 8-119(a), is this system stable? If the Nyquist plot is as shown in Figure 8-119(b), is this system stable? G(s) Figure 8-118 Closed-loop system.
B-8-18. Consider the closed-loop system shown in Figure 8-118. G(s) has no poles in the right-half s plane. If the Nyquist plot of G(s) is as shown in Figure 8-119(a), is this system stable? If the Nyquist plot is as shown in Figure 8-119(b), is this system stable? G(s) Figure 8-118 Closed-loop system.
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KVL and KCL
KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.
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Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.
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B-8-18)
Transcribed Image Text:B-8-18. Consider the closed-loop system shown in Figure
8-118. G(s) has no poles in the right-half s plane.
If the Nyquist plot of G(s) is as shown in Figure
8-119(a), is this system stable?
If the Nyquist plot is as shown in Figure 8-119(b), is this
system stable?
G(s)
Figure 8-118
Closed-loop system.
Transcribed Image Text:Im
Figure 8-119
Nyquist plots.
(a)
Im
bo
(b)
Re
Re
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