6- A system with a unity positive feedback gain has error ratio ----------- where R(s) is the system input and G(s) is the plant transfer function. a- 1+G(s) b- G 1+G(s) 1-G(s) d- 1-G(s)

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6- A system with a unity positive feedback gain has error ratio -------
R(s) is the system input and G(s) is the plant transfer function.
a-
b-
G
1+G(s)
1+G(s)
7- A system with the following transfer function has
s² - 12
1-G(s)
Y(s)
U(s) S³ + 4s 10
=
d-
where
G
1-G(s)
Transcribed Image Text:6- A system with a unity positive feedback gain has error ratio ------- R(s) is the system input and G(s) is the plant transfer function. a- b- G 1+G(s) 1+G(s) 7- A system with the following transfer function has s² - 12 1-G(s) Y(s) U(s) S³ + 4s 10 = d- where G 1-G(s)
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