Topic: Electronics Engineering
The closed loop transfer function of a unity feedback control system is $G(s)=\frac{1}{(s+2)^{2}}$. The closed loop transfer function will have poles at
- A. -2, $\pm j$
- B. -2, -1
- C. -2, -2
- D. -2, 2
Answer: C. -2, -2
Explanation: $G(s)=\frac{1}{(s+2)^{2}}$
There are repeated poles at $s=-2$.