engineering recuitment GATE EE 2023-24 Test Series Control Systems Root Locus Diagram Branches of Root Locus
The characteristic equation of a closed-loop system is
s(s + 1)(s + 3) + K(s + 2) = 0, K > 0
Which of the following statements true?1
Its roots are always real
2
It cannot have a breakaway point in the range -1 < Re[s] < 0
3
Two of its roots tend to infinity along the asymptotes Re[s] = -1
4
It may have complex roots in the right half-plane