Q-6 b, Consider a negative unity feedback system with forward path transfer function K G(s) = where K, a, b, c are positive real numbers. For a Nyquist path enclosing the (s+ a)(s-b)(s+c)' entire imaginary axis and right half of the s-plane in the clockwise direction, the Nyquist plot of (1 + G(s)), encircles the origin of (1 + G(s))-plane once in the clockwise direction and never passes G(s) 1+ G(s) through this origin for a certain value of K. Then, the number of poles of lying in the open right half of the s-plane is

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Question.6. b-

Q-6 b,
Consider a negative unity feedback system with forward path transfer function
K
G(s) =
where K, a, b, c are positive real numbers. For a Nyquist path enclosing the
(s+ a)(s-b)(s + c)'
entire imaginary axis and right half of the s-plane in the clockwise direction, the Nyquist plot of (1 +
G(s)), encircles the origin of (1 + G(s))-plane once in the clockwise direction and never passes
G(s) lying in the open
through this origin for a certain value of K. Then, the number of poles of
1+ G(s)
right half of the s-plane is
Ka da
PEMERAN
pendeka
MEN ZRENDERE
Transcribed Image Text:Q-6 b, Consider a negative unity feedback system with forward path transfer function K G(s) = where K, a, b, c are positive real numbers. For a Nyquist path enclosing the (s+ a)(s-b)(s + c)' entire imaginary axis and right half of the s-plane in the clockwise direction, the Nyquist plot of (1 + G(s)), encircles the origin of (1 + G(s))-plane once in the clockwise direction and never passes G(s) lying in the open through this origin for a certain value of K. Then, the number of poles of 1+ G(s) right half of the s-plane is Ka da PEMERAN pendeka MEN ZRENDERE
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