engineering recuitment ISRO Technical Assistant 2024 Mock Test Control Systems Stability Analysis Condition For Stability
Consider the following statements related to stability of the control system :
1. Poles in right half-plane (rhp) yield pure exponential decaying natural response.
2. If poles of multiplicity greater than one are present on the imaginary axis, then the system is marginally stable,
3. If one pole is present in right-half plane, the system is unstable.
4. A system is stable if the natural response approaches zero as time approaches infinity.
Which of the above statements is/are not correct ?
1
1 and 4 only
2
1 and 2 only
3
1 only
4
3 and 4 only