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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Test  >  Analog and Digital Electronics  >  Test: Circuit Models For Amplifier - Electrical Engineering (EE) MCQ

Circuit Models For Amplifier - Free MCQ Practice Test with solutions, GATE


MCQ Practice Test & Solutions: Test: Circuit Models For Amplifier (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: Circuit Models For Amplifier". 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

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Test: Circuit Models For Amplifier - Question 1
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Buffer amplifier needs to have

Detailed Solution: Question 1

Buffer amplifiers are used to connect high input resistance source to a low output resistance load.

Test: Circuit Models For Amplifier - Question 2
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The ideal values for the input resistance (Ri) and the output resistance (Ro) of a transconductance amplifier are

Detailed Solution: Question 2

It is a desired characteristics of transconductance amplifier ideally.

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Test: Circuit Models For Amplifier - Question 3
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An amplifier has a voltage gain of 40db. The value of AVO is

Detailed Solution: Question 3

 The expression is given by 10 log AVO = 40. Solving for Avo gives 100 as the answer.

Test: Circuit Models For Amplifier - Question 4
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The output voltage of a voltage amplifier has been found to decrease by 20% when a load resistance of 1 kΩ is connected. What is the value of the amplifier output resistance?

Detailed Solution: Question 4

250 / (1000 + 250) X 100% = 20%. Hence the output resistance is 250 ohm.

Test: Circuit Models For Amplifier - Question 5
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Which of the following is a transresistance amplifier?

Detailed Solution: Question 5

Figure d is the correct representation rest are voltage, current, transconductance amplifiers.

Test: Circuit Models For Amplifier - Question 6
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The signal to be amplified is current signal and the output desired is a voltage signal. Which of the following amplifier can perform this task?

Detailed Solution: Question 6

It is a characteristic of transconductance amplifier.

Test: Circuit Models For Amplifier - Question 7
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You are given two amplifiers, A and B, to connect in cascade between a 10-mV, 100-kΩ source (S) and a 100-Ω load (L). The amplifiers have voltage gain, input resistance, and output resistance as follows: for A, 100 V/V, 10 kΩ, 10 kΩ, respectively; for B, 1 V/V, 100 kΩ, 100 Ω, respectively. Your problem is to decide how the amplifiers should be connected so that the voltage gain is maximum.

Test: Circuit Models For Amplifier - Question 8
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A transconductance amplifier with Ri = 2 kΩ, Gm = 40 mA/V, and Ro = 20 kΩ is fed with a voltage source having a source resistance of 2 kΩ and is loaded with a 1-kΩ resistance. Find the voltage gain realized.

Test: Circuit Models For Amplifier - Question 9
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The ratio of the short circuit current gain of a current amplifier (Ai) to the open circuit voltage gain of a voltage amplifier (AV), given that both amplifiers have the same value of the input resistance (Ri) and output resistance (R0), is

Detailed Solution: Question 9

It is a standard mathematical relation.

Test: Circuit Models For Amplifier - Question 10
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The ratio of the open circuit voltage of a voltage amplifier (AV) to the short circuit transconductance of a (Gm) of a transconductance amplifier, given that both have the same value of the internal resistance (Ri) and the output resistance (R0), is

Detailed Solution: Question 10

It is a standard mathematical relation.

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About this Electrical Engineering (EE) Practice Test

This test contains 10 MCQs on Circuit Models For Amplifier 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.

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If you found this Circuit Models For Amplifier 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:
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