Determine the value of K such that roots of characteristic equation given below lies to the left of the line s = -1. s3+10s2+18s+K.
A. K>16 and K<9
B. K<16
C. 9<K<16
D. K<9
Answer:C
Determine the value of K such that roots of characteristic equation given below lies to the left of the line s = -1. s3+10s2+18s+K.
A. K>16 and K<9 B. K<16 C. 9<K<16 D. K<9
Explanation: In Routh array analysis the first column must be positive and after solving K<16 and K>9.