Which of the following mathematical tools is most commonly used to analyze the stability of linear feedback control systems by examining the location of poles and zeros?
Question 2
Consider a system with an open-loop transfer function $G(s) = \frac{K}{s(s+a)}$. If this system is placed in a unity negative feedback configuration, what is the characteristic equation of the closed-loop system?
Question 3
In a control system, what is the primary effect of a proportional-integral-derivative (PID) controller's integral term ($K_I$) on the system's steady-state error?
Question 4
Which of the following best describes the phenomenon of limit cycling in a non-linear dynamic system?
Question 5
When analyzing the stability of a system using the Nyquist criterion, what does it mean if the Nyquist plot encircles the point $-1 + j0$ in the counter-clockwise direction?
