Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 4 (Q.No. 29)
29.
The characteristic equation of a feedback control system is given by s3 + 5s2 + (K + 6)s + K = 0
where K > 0 is a scalar variable parameter. In the root-loci diagram of the system the asymptotes of the root-locus for large values of K meet at a point in the s-plane, whose coordinates are :
(- 3, 0)
(- 2, 0)
(- 1, 0)
(2, 0)
Answer: Option
Explanation:

Apply R-H, and find ω by auxiliary equation.

Discussion:
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