The polar diagram of conditionally stable system for open loop gain k = 1 is shown in the figure. The open loop transfer function of the system is known to be stable. The closed loop system is stable for

A) $$K < 5{\text{ and }}\frac{1}{2} < K < \frac{1}{8}$$ B) $$K < \frac{1}{8}{\text{ and }}\frac{1}{2} < K < 5$$ C) $$K < \frac{1}{8}{\text{ and }}5 < K$$ D) $$K < \frac{1}{8}{\text{ and }}K < 5$$

Answer & Solution

Correct Answer: Option B

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The polar diagram of conditionally stable system for open loop gain...

The polar diagram of conditionally stable system for open loop gain k = 1 is shown in the figure. The open loop transfer function of the system is known to be stable. The closed loop system is stable for

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