Question
Download Solution PDFWhen the number of poles is equal to the number of zeros, how many branches of root locus tend towards infinity?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
No. of branches towards infinity = No. of poles – No. of zeroes.
When the number of poles = No. of zeroes, then the number of branches towards infinity = 0
Example:
\(G\left( s \right)H\left( s \right) = \frac{{K\left( {s + 2} \right)}}{{\left( {s + 3} \right)\left( {s + 4} \right)}}\)
Only one branch towards infinity since P – Z = 1
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