Frequency Response

By : Vandana Tanwar

Updated : Feb 3, 2021, 13:15

Frequency Response is used in the fields of electronics, electrical, computer science, and music. After learning from Frequency Response notes for GATE PDF, you can quickly solve Frequency Response MCQ questions in GATE exams. Once you are through with Frequency Response study material for GATE ECE, you can easily score good marks in the final examination for the related topics.  In response to any external environmental factor, the output spectrum of a device or system changes. Frequency response measures this quantitative change that characterizes the dynamics of a system. In comparison to the input, the frequency response is a measure of the output phase as a function of frequency and the system's magnitude. To get good marks in the Frequency Response for the GATE ECE paper, you need to practice frequency response quizzes, MCQs.

Important Frequency Response Topics for GATE ECE and CSE 

Given below are some of the important topics of frequency response for GATE ECE and CSE



Frequency Response Curve

For any given circuit, the frequency response is the circuit’s behavioral variations concerning the input signal frequency changes.

Frequency Response of an Ideal Differentiator 

A differentiator is a high pass filter that amplifies every signal having high frequencies. This is why at the outputs, differentiators produce noisier signals. 

Frequency Response of an Ideal Integrator

An integrator has a low pass filter effect that is why it suppresses high-frequency components like noise. 

Applications of Frequency Response

Hearing aid, control systems, and loudspeakers

Some other topics for GATE ECE syllabus are Stability and Routh-Hurwitz Criterion, Frequency Response Analysis Nyquist Plot, Bode Plot, State variable analysis, Time Response, TDA, Root Locus, and Steady-state error.

Tips To Solve Frequency Response Questions for GATE 

  • Check the official Frequency Response GATE syllabus and practice the questions accordingly. 
  • Practice from Frequency Response GATE questions and answers PDF. The Frequency Response online test will corroborate your knowledge of the topic. 
  • Refer to the Frequency Response notes for ECE that you prepared while learning to understand the difficult questions. 
  • Read and understand the questions twice before solving them. 

Importance of Frequency Response in GATE ECE

  • Frequency Response questions are generally asked in statistical form for different government and banking exams. Check the Frequency Response MCQ PDF for knowing about the types of questions asked. Take the Frequency Response quiz for testing your knowledge about the topic. 
  • The basic and advanced questions of Frequency Response will be asked in GATE exams for Electrical, Electronics and Communications, Computer Science, and Electronics and Telecommunications exams. 
  • In previous GATE exams, Frequency Response questions carried an average of 1.5 marks. 

Most Recommended Frequency Response Books for GATE

Frequency Response MCQs for GATE Computer Science and ECE can be easily cleared with Frequency Response GATE notes’ help. Additionally, you can refer to the following books as an additional resource. 



Machining Dynamics: Frequency Response to Improved Productivity

K. Scott Smith

Fundamentals of Electronics: Book 3

Thomas F. Schubert

Frequency-response Methods in Control Systems

A. G. J MacFarlane

Why prepare Frequency Response from BYJU'S Exam Prep? 

BYJU'S Exam Prep is the one-stop destination for Frequency Response online quiz, Frequency Response GATE ECE and CS notes, Frequency Response syllabus for GATE, mock tests, and free videos for students desiring to learn any topic for competitive Banking and Government exams. By creating a free BYJU'S Exam Prep account, you will get access to all the mentioned resources at the convenience of a click. The website also offers previous year question papers with solutions to efficiently help you in learning the concepts. More than 150 MCQs are on the website specifically for the Frequency Response topic to help you in your main exam preparation. Frequency Response methods in Control Systems have wide applications in Electronics and Computer Engineering. 

Frequently Asked Questions (FAQs): 

Q. What does the impulse response of a system tell? 

In response to an external change, a dynamic system reacts by sending an impulse response. For all frequencies, the impulse response defines the linear time-invariant system’s response.

Q. What is constant N-loci? 

Constant N loci are the constant gain circles for a closed-loop transfer function. The intersection of M and N is always at (-1,0) point.  

Q. What is Nichol’s chart? 

Nichol’s chart is a plot of loop gain used to determine the system’s stability when the frequency is varied. 

Q. If we double the gain of an open-loop system, what happens to the gain of the system? 

When we double the gain of an open-loop system, the gain of the system is not affected. This is because the gain of the system is independent of the overall gain of the system.  

Q. Which one of the methods is used for determining the closed-loop system resonance frequency operation?  

M and N circle is the correct answer for this. A closed-loop system resonance frequency is the point where the maximum peak of frequency occurs. At this point, the operation frequency is best determined with an M and N circle’s help. 

Q. What is the difference between frequency response and frequency range? 

Frequency Range is the actual range of frequencies reproduced by a monitor—for example, 20HZ to 22 kHz. On the contrary, Frequency Response is the measure of Frequency Range in comparison with the Amplitude. For example, at 20Hz, an input signal produces 99-decibel output.