Frequency Domain Analysis » Exercise - 1 16. For a stable system : (a) gain margin must be positive but phase margin can be positive or negative (b) phase margin must be positive but gain margin can be positive or negative (c) both gain margin and phase margin must be positive (d) one of them must be zero
Frequency Domain Analysis » Exercise - 111. The gain margin of a system is 0 dB. It represent a : (a) stable system (b) unstable system (c) conditionally stable system (d) marginally stable system
Frequency Domain Analysis » Exercise - 123. The phase margin of a system is 0˚. It represents a : (a) stable system (b) unstable system (c) conditionally stable system (d) marginally stable system
Time Domain Analysis » Exercise - 139. If the characteristic equation of a system is s^2+6s+8 =0, the system is : (a) undamped (b) underdamped (c) critically-damped (d) overdamped