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The system with transfer function
K s2(1 + sT)
is operated in closed-loop with unity feedback. The closed-loop system is—
-
- stable
- unstable
- marginally stable
- conditionally stable
- stable
Correct Option: B
C.E. = 1 + G (s) H (s) = 0
| = 1 + | 1 = s2 + s3T + K = 0 | |
| s2(1 + sT) |
There is missing term of s1. Hence the system is unstable.
