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| Q.88 | Which of the following statements is correct regarding position of roots of a closed loop system having characteristics equation s6 + 3s5 + 5s4 + 9s3 + 8s2 + 6s + 4 = 0? | |
| Ans | A. Only four roots lie on the imaginary axis. | |
| B. Only one root lies on the imaginary axis. | ||
| C. All six roots lie on the imaginary axis. | ||
| D. Only two roots lie on the imaginary axis. |
Correct Ans Provided: C
