Electronis Discussion

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The Nyquist stability criterion and the Routh criterion both are powerful analysis tools for determining the stability od feedback controllers. Identify which of the following statements is FALSE:

- Both the criteria provide information relative to the stable gain range of the system.
- The general shape of the Nyquist plot is readily obtained from the Bode magnitude plot for all minimum-phase systems.
- The Routh criterion is not applicable in the condition of transport lag, which can be readily handled by the Nyquist criterion.
- The closed-loop frequency response for a unity feedback system cannot be obtained from the Nyquist plot.

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