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ECE · Q46

Control Systems

Engineering and GATE · ECE · question 46

Q46

If any term in the first column of a Routh array becomes zero, then

A.
Routh criterion cannot be used to determine stability
B.
Routh criterion can be used by substituting a small positive number for zero and completing the array
Answer
C.
Routh criterion can be used by substituting a big positive number for zero and completing the array
D.
Routh criterion can be used by substituting a small negative number for zero and complet-ing the array

Answer: Option B

Solution

Answer: Option B
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