asked by
If the characteristics equation of a closed loop system is s2+2s+2=0, then the system is 

(A) Over damped (B) Critically damped (C) Under damped (D) Undamped 

Please log in or register to answer this question.

1 Answer

0 votes
answered by

Solving the above character equation gives complex roots -1+i and -1-i. If we plot that roots on real and imaginary axis plane(s-plane), it will be completely on left side of s-plane. So, the oscillations of the above conjugate roots are underdamped and are absolutely stable.

Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.