engineering recuitment RVUNL JEn (RSEB) Mock Tests 2025 Control Systems Stability Analysis Routh-Hurwitz Stability Criteria
The characteristic equation of a feedback system is given by
S3 + 13s2 + 30s + K = 0
Which of the following statements is not TRUE.
1
The system is stable for 0 < K < 390
2
The system oscillates for K = 390
3
The frequency of oscillation is √30 rad/sec
4
The auxiliary equation in the Routh’s tabulation is 13s + 390
5
All of the above