A closed-loop system is analyzed. It is found that at the critical frequency Wc, the closed-loop gain is 4 dB and the open-loop gain is -8 dB. Which of the response is correct? O We cannot conclude about the system stability. The system is unstable. The system is stable. O The system is marginally stable (at the limit between stability and instability).

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A closed-loop system is analyzed.
It is found that at the critical frequency
WC, the closed-loop gain is 4 dB and the
open-loop gain is -8 dB.
Which of the response is correct?
We cannot conclude about the system
stability.
O The system is unstable.
The system is stable.
O The system is marginally stable (at the limit
between stability and instability).
Transcribed Image Text:A closed-loop system is analyzed. It is found that at the critical frequency WC, the closed-loop gain is 4 dB and the open-loop gain is -8 dB. Which of the response is correct? We cannot conclude about the system stability. O The system is unstable. The system is stable. O The system is marginally stable (at the limit between stability and instability).
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