Topic: Control Systems
A system has fourteen poles and two zeros. Its high frequency asymptote in its magnitude plot having a slope of
- A. -40 dB/decade
- B. -240 dB/decade
- C. -280 dB/decade
- D. -320 dB/decade
Answer: B. -240 dB/decade
Explanation: Number of poles = 14.
Number of zeros = 2.
High frequency asymptote's slope $= 20 \times (\text{Number of zeros} - \text{Number of poles}) \text{ dB/decade} = 20(2 - 14) = -240 \text{ dB/decade}$.