For a control system having fourteen poles and two zeros, the slope in its magnitude plot for high frequency asymptote will be :

This question was previously asked in
NIELIT Scientific Assistant ECE 5 Dec 2021 Official Paper
View all NIELIT Scientific Assistant Papers >
  1. −40 dB/decade
  2. −240 dB/decade
  3. −280 dB/decade
  4. −320 dB/decade

Answer (Detailed Solution Below)

Option 2 : −240 dB/decade
Free
NIELIT Scientific Assistant Quantitative Aptitude Mock Test
0.5 K Users
20 Questions 20 Marks 30 Mins

Detailed Solution

Download Solution PDF

Explanation:

To determine the slope in the magnitude plot for the high frequency asymptote of a control system, we need to understand the relationship between the number of poles and zeros in the system.

In control systems, the Bode plot is a graphical representation of a system's frequency response. The slope of the magnitude plot in the high frequency region is influenced by the number of poles and zeros. Specifically, each pole contributes a slope of -20 dB/decade, and each zero contributes a slope of +20 dB/decade.

Given:

  • Number of poles (P ) = 14
  • Number of zeros (Z ) = 2

The formula to determine the overall slope in the high frequency asymptote is:

Slope (dB/decade) = -20 × (Number of poles - Number of zeros)

Substituting the given values:

Slope (dB/decade) = -20 × (14 - 2)

Slope (dB/decade) = -20 × 12

Slope (dB/decade) = -240 dB/decade

Therefore, the correct option is:

Option 2: -240 dB/decade

Latest NIELIT Scientific Assistant Updates

Last updated on Feb 20, 2025

-> A total number of 113 revised vacancies have been announced for the post of Scientific Assistant in Computer Science (CS), Information Technology (IT), and Electronics & Communication (EC) streams.

-> Online application form, last date has been extended up to from 17th April 2025.

->The NIELT has revised the Essential Qualifications for the post of Scientific Assistant. Candidates must possess (M.Sc.)/ (MS)/ (MCA) / (B.E.)/ (B.Tech) in relevant disciplines.

 

-> The NIELIT Scientific Assistant 2025 Notification has been released by the National Institute of Electronics and Information Technology (NIELIT).

More Frequency Response Analysis Questions

Get Free Access Now
Hot Links: mpl teen patti teen patti online game teen patti gold new version 2024 teen patti casino apk