Electronics Engineering · Control Systems
The characteristic equation of a closed-loop system is given by s5 + 4s4 + 5s3 + 8s2 + 6s + 4 = 0. Determine the stability of the system using the Routh-Hurwitz criterion.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The system is stable, but it contains repeated roots on the imaginary axis
- 2The system is marginally stable as it contains a pair of purely imaginary roots
- 3The system is unstable because at least one root lies in the right-half of the s-plane✓
- 4The system is stable and all roots lie strictly in the left-half of the s-plane
Correct answer
The system is unstable because at least one root lies in the right-half of the s-plane
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