If root loci plots of a particular control system do not intersect the imaginary axis at any point, then the gain margin of the system will be:
A. 0
B. 0.707
C. 1
D. Infinite
Answer:D
If root loci plots of a particular control system do not intersect the imaginary axis at any point, then the gain margin of the system will be:
A. 0 B. 0.707 C. 1 D. Infinite
Explanation: The gain margin is the inverse of the intersection of the root loci plot to the imaginary axis and if it does not intersect then the gain margin will be infinite.