The polar plot of a type-1, 3-pole, open-loop system is shown in figure. The closedloop system is

unstable with two poles on the right half s-plane

unstable with one pole on the right half s-plane

The polar plot of a type-1, 3-pole, open-loop system is shown in figur

1.	The polar plot of a type-1, 3-pole, open-loop system is shown in figure. The closedloop system is
A.	always stable
B.	marginally stable
C.	unstable with one pole on the right half s-plane
D.	unstable with two poles on the right half s-plane
Answer» D. unstable with two poles on the right half s-plane

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The polar plot of a type-1, 3-pole, open-loop system is shown in figure. The closedloop system is

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