All Courses
Get the App Signup / Login
Sign in Open App
Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  Topicwise Question Bank for Electrical Engineering  >  Test: Basic FET Amplifiers- 2 - Electrical Engineering (EE) MCQ

Test: Basic FET Amplifiers- 2 - Electrical Engineering (EE) MCQ


Test Description

10 Questions MCQ Test Topicwise Question Bank for Electrical Engineering - Test: Basic FET Amplifiers- 2

Test: Basic FET Amplifiers- 2 for Electrical Engineering (EE) 2024 is part of Topicwise Question Bank for Electrical Engineering preparation. The Test: Basic FET Amplifiers- 2 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Basic FET Amplifiers- 2 MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Basic FET Amplifiers- 2 below.
Solutions of Test: Basic FET Amplifiers- 2 questions in English are available as part of our Topicwise Question Bank for Electrical Engineering for Electrical Engineering (EE) & Test: Basic FET Amplifiers- 2 solutions in Hindi for Topicwise Question Bank for Electrical Engineering course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Basic FET Amplifiers- 2 | 10 questions in 30 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study Topicwise Question Bank for Electrical Engineering for Electrical Engineering (EE) Exam | Download free PDF with solutions
Test: Basic FET Amplifiers- 2 - Question 1
Save

In the common drain amplifier shown below, if RS = 4 KΩ, RG = 10 MΩ, μ = 50 and rd = 35 KΩ then the voltage gain Av of the amplifier is approximately equal to

Detailed Solution for Test: Basic FET Amplifiers- 2 - Question 1

The small signal equivalent circuit of common-drain amplifier is shown below.

Using Thevenin’s theorem, the output voltage is


(where, Vgd = Vi = input voltage)
∴ Voltage gain is

Test: Basic FET Amplifiers- 2 - Question 2
Save

The value of V0/Vin for the circuit shown below is (Assume M1 in saturation)

Detailed Solution for Test: Basic FET Amplifiers- 2 - Question 2

M2 is also saturated because its gate and drain are shorted together. The small signal circuit is shown below:

Here, 
For most MOSFET transistor, rd1 and d2 are much greater than 1/gm2.
Hence, 
Now, 
∴ 
= Required voltage gain

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Basic FET Amplifiers- 2 - Question 3
Save

Consider the following statements:
1. In most linear applications of field-effect transistors the device is operated in the. constant-current portion of its output characteristics.
2. In the region before pinch-off, where VDS is small, the FET is useful as a voltage variable resistors (VVR).
3. The VVR can be used in AGC amplifier to vary the voltage gain of multistage amplifier.

Q. Which of the above statements is/are correct?

Test: Basic FET Amplifiers- 2 - Question 4
Save

In the saturation region, the ID - VGS characteristics of a MOSFET are
Detailed Solution for Test: Basic FET Amplifiers- 2 - Question 4

For amplifier operation, MOSFET is always operated in saturation region.
Since, in saturation region,therefore the ID - VGS characteristics of a MOSFET are quadratic as evident from the above equation.

Test: Basic FET Amplifiers- 2 - Question 5
Save

The source-bias circuit provides DC biasing for the FET. The resistance from gate to ground (RS) in that circuit is necessary because, without it,
Test: Basic FET Amplifiers- 2 - Question 6
Save

In an FET common-source high frequency amplifier, which one of the following is the correct expression for input capacitance Ci ?
Test: Basic FET Amplifiers- 2 - Question 7
Save

A JFET is set up as a source follower. Given, μ = 200, rd = 100 kΩ and source load resistance RL = 1 kΩ. The output resistance R0 is given approximately by
Detailed Solution for Test: Basic FET Amplifiers- 2 - Question 7

We know that,
μ = gmrd
or, 
Output resistance,

Test: Basic FET Amplifiers- 2 - Question 8
Save

A FET tuned amplifier with gm = 5 mA/V, rd = 20 kΩ has a resonant impedance of 20 kΩ. The gain at resonance is given by
Detailed Solution for Test: Basic FET Amplifiers- 2 - Question 8

AV = Gain at resonance = gmR
Here, R = rd ║Rmax 

∴ AV = 5x 10-3 x 10 x 103 = 50

Test: Basic FET Amplifiers- 2 - Question 9
Save

The unity gain bandwidth fT of a JFET is given by
Test: Basic FET Amplifiers- 2 - Question 10
Save

 The transconductance for a JFET having  IDSS = 8 mA, VP = -4 V and biased to operate at VGS = - 1.8 volt will be given by
Detailed Solution for Test: Basic FET Amplifiers- 2 - Question 10


212 tests
Join Course
Information about Test: Basic FET Amplifiers- 2 Page
In this test you can find the Exam questions for Test: Basic FET Amplifiers- 2 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Basic FET Amplifiers- 2, EduRev gives you an ample number of Online tests for practice

Top Courses for Electrical Engineering (EE)

Download as PDF

Top Courses for Electrical Engineering (EE)

Important Questions for Basic FET Amplifiers- 2

Find all the important questions for Basic FET Amplifiers- 2 at EduRev.Get fully prepared for Basic FET Amplifiers- 2 with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Basic FET Amplifiers- 2 syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Basic FET Amplifiers- 2 resources.

Basic FET Amplifiers- 2 MCQs with Answers

Prepare for the Basic FET Amplifiers- 2 within the Electrical Engineering (EE) exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Basic FET Amplifiers- 2 Topicwise Question Bank for Electrical Engineering

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Basic FET Amplifiers- 2 with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up
within 7 days!
Takes less than 10 seconds to signup