Explore Exams
Login Signup
Sign in Open App
Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Test  >  Analog and Digital Electronics  >  Test: Amplifiers - Electrical Engineering (EE) MCQ

Amplifiers - GATE EE Analog and Digital Electronics Free MCQ Test


MCQ Practice Test & Solutions: Test: Amplifiers (10 Questions)

You can prepare effectively for Electrical Engineering (EE) Analog and Digital Electronics with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Amplifiers". These 10 questions have been designed by the experts with the latest curriculum of Electrical Engineering (EE) 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 10 minutes
  • - Number of Questions: 10

Sign up on EduRev for free to attempt this test and track your preparation progress.

Test: Amplifiers - Question 1
Save

An amplifier operating from ±3V provide a 2.2V peak sine wave across a 100 ohm load when provided with a 0.2V peak sine wave as an input from which 1.0mA current is drawn. The average current in each supply is measured to be 20mA. What is the amplifier efficiency?

Detailed Solution: Question 1

Test: Amplifiers - Question 2
Save

 In order to prevent distortion in the output signal after amplification, the input signal must be

Detailed Solution: Question 2

Higher than the positive saturation and lower than the negative saturation level of the amplifier are the desired characteristics in order to prevent distortion.

Clear all your doubts with EduRev
Test: Amplifiers - Question 3
Save

The voltage gain of the amplifier is 8 and the current gain is 7. The power gain of the amplifier is

Detailed Solution: Question 3

 The power gain is given by 10 log (7 X 8) db.

Test: Amplifiers - Question 4
Save

 Statement 1: Voltage gain of -5 means that the output voltage has been attenuated.Statement 2: Voltage gain of -5db means that the output voltage has been attenuated.

Detailed Solution: Question 4

A negative voltage gain means that a phase difference of 1800 has been introduced in the output waveform when compared to the input waveform. A voltage gain of -5db means that the signal has been attenuated.

Test: Amplifiers - Question 5
Save

Which of the following isn’t true?

Detailed Solution: Question 5

 For an ideal transformer the power input is always equal to the power output. In real conditions there is slight loss of power when transferring the power from an input source to an output source. Amplifiers only provide power gain.

Test: Amplifiers - Question 6
Save

 Symmetrically saturated amplifiers operating in clipping mode can be used to convert a sine wave to a

Detailed Solution: Question 6

Clipping circuits with low peak values of the output signals are used to generate pseudo square waves if the input signal is very large as compared to the output signal.

Test: Amplifiers - Question 7
Save

What is meant by stability of the an amplified signal?

Detailed Solution: Question 7

 The ability of the amplifier to prevent self oscillation is a measure of its stability

Test: Amplifiers - Question 8
Save

If Av, Ai and Ap represents the voltage gain, current gain and power gain ratio of an amplifier which of the below is not the correct expression for the corresponding values in decibel?

Detailed Solution: Question 8

Option C is not correct.

Power gain in decibels is given by 10 log10(Ap) because decibel is a logarithmic measure of a power ratio, and power ratios use the factor 10.

Voltage and current gains are amplitude ratios. When the reference impedance is the same, power varies as the square of voltage or current (P ∝ V2 or P ∝ I2), so their decibel expressions use 20 log10 (since 20 log10(A) = 10 log10(A2)).

Thus, 20 log10(Ai) (option A) and 20 log10(Av) (option B) are correct for current and voltage gains respectively, and 10 log10(Ap) (option D) is the correct expression for power gain.

Therefore, option C (stating 20 log10(Ap) for power gain) is the incorrect expression.

Test: Amplifiers - Question 9
Save

An amplifier has a voltage gain of 100 V/V and a current gain of 1000A/A. the value of the power gain decibel is

Detailed Solution: Question 9

Power gain in db is given by 10 log (100 X 1000) db.

Test: Amplifiers - Question 10
Save

The units of voltage gain is

Detailed Solution: Question 10

Voltage gain (Vo) = output voltage/input voltage (Vi). It is also expresses as 20 log (Vo/Vi) db.

135 videos|182 docs|71 tests
Join Course
Information about Test: Amplifiers Page
In this test you can find the Exam questions for Test: Amplifiers solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Amplifiers, EduRev gives you an ample number of Online tests for practice
135 videos|182 docs|71 tests
Join Course
Download as PDF

About this Electrical Engineering (EE) Practice Test

This test contains 10 MCQs on Amplifiers with detailed solutions for each question. It is part of the Analog and Digital Electronics course on EduRev, designed to align with the current Electrical Engineering (EE) syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

Explore more Electrical Engineering (EE) Study Resources

If you found this Amplifiers MCQ Test helpful, you can further enhance your Electrical Engineering (EE) preparation with in-depth courses on EduRev, for all the subjects and topics available in Analog and Digital Electronics course. The course offers:
  • Video Lectures: covering all the topics of Analog and Digital Electronics
  • Notes for Revision: offering revision notes, important questions, summaries, flashcards, cheatsheets & more for Electrical Engineering (EE) preparation
  • MCQ Test: variety of questions as per the pattern of Electrical Engineering (EE) exam
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup