Practice Small Signal Model of MOSFET - 5.4 | 5. MOSFET Amplifiers | Electronic Devices 1
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Typing
Memory
Math
English Adventures
Knowledge

5.4 - Small Signal Model of MOSFET

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the small signal model represent?

💡 Hint: Think about linear approximations.

Question 2

Easy

Define transconductance in relation to MOSFETs.

💡 Hint: Consider its role in proportional changes.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the small signal model of a MOSFET represented as?

  • A current-controlled voltage source
  • A voltage-controlled current source
  • A resistor

💡 Hint: Think about how the MOSFET operates.

Question 2

Transconductance (gm) refers to the ratio of which quantities?

  • Output voltage to input voltage
  • Change in output current to change in input voltage
  • Input voltage to output current

💡 Hint: Consider the formula for gm.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A MOSFET has a threshold voltage (Vth) of 0.7 V, and operates with ID of 10 mA at VGS = 3 V. Calculate its transconductance and its output current for a small signal VGS = 0.01 V.

💡 Hint: Use the transconductance formula and plug in the values carefully.

Question 2

Explain how the small signal model assists in determining the bandwidth of a MOSFET amplifier, given you're varying Vgs to analyze performance.

💡 Hint: Focus on gain response in relation to frequency adjustments.

Challenge and get performance evaluation