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The characteristic equation of a system is given as3s4+10s3+5s2+2=0. This system is :

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The characteristic equation of a system is given as3s4+10s3+5s2+2=0. This system is :

(a) Stable

(b) Marginally stable

(c) Unstable

(d) Linear

The question was asked at a job interview.

Origin of the question is Routh-Hurwitz Stability Criterion in division Stability and Algebraic Criteria of Control Systems

1 Answer

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Best answer
Right option is (c) Unstable

To explain: There is a missing coefficient so the system is unstable.

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