A second order system is given as G(s) = K(1 + τ1s) (1

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A second order system is given as
G(s) = K
(1 + τ₁s) (1 + τ₂s)

If the gain K is increased, then the phase margin—

1. gets increased
2. gets decreased
3. is unaffected
4. gets decreased and becomes stable

Correct Option: B

NA