The root locus plot of the roots of the characteristics equation of a closed loo

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Question

The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K (s + 1)/[2 (2s + 1) (3s + 1)] will have a definite number of loci for variation of K from 0 to ∞. The number of loci is_______________?

Options:

A . 1

B . 2

C . 3

D . 4

Answer: Option C
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