Stability Theory » Exercise - 132. If all the roots of the characteristic equation have negative real parts, then the system is : (a) stable (b) unstable (c) conditionally stable (d) marginally stable
Stability Theory » Exercise - 254. The damping ratio of a second-order system is 0.2. Its phase margin is approximately : (a) 0.4˚ (b) 2˚ (c) 20˚ (d) 40˚
Stability Theory » Exercise - 147. Because of the addition of pole to G(s)H(s), the stability of the system is : (a) improved (b) reduced (c) not affected (d) none of these
Stability Theory » Exercise - 126. If the system has multiple poles on the jω axis, the system is : (a) stable (b) unstable (c) marginally stable (d) conditionally stable