engineering recuitment GATE IN Test Series 2023-24 Mock Test Control Systems Stability Analysis Routh-Hurwitz Stability Criteria
If the loop gain K of a negative feedback system having an loop transfer function \(K\frac{(s+3)}{(s+8)^2}\) is to be adjusted to induce a sustained oscillation, then:
1
The frequency of this oscillation must be 4√3 rad/s
2
The frequency of this oscillation must be 4 rad/s
3
The frequency of this oscillation must be 4 or 4√3 rad/s
4
such a K does not exist