According to Bode stability criterian, a system is unstable, if the open loop fr

Question

According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is

Options:

A . 0°

B . 45°

C . 90°

D . 180°

Answer: Option D
Answer: (d).180°

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