Practice Small Signal Equivalent Circuit - 19.1.1 | 19. Linearization of non - linear circuit containing BJT (Contd.) | Analog Electronic Circuits - Vol 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

19.1.1 - Small Signal Equivalent Circuit

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 equivalent circuit aim to achieve?

💡 Hint: Consider the linearization of circuit behavior.

Question 2

Easy

Define transconductance in your own words.

💡 Hint: Think about current versus voltage relationships.

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 does transconductance measure?

  • Change in collector current per change in base-emitter voltage
  • Change in base current per change in collector-emitter voltage
  • Change in output power per change in input power

💡 Hint: Focus on the relationship between current and voltage.

Question 2

Is the output conductance of a BJT a measure of how collector current changes with collector-emitter voltage?

  • True
  • False

💡 Hint: Think about how voltage affects current.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Consider a BJT amplifier with a transconductance of 1.5mS and a base-emitter resistance of 200Ω. If the input signal is a sinusoidal voltage of 20mV, calculate the output voltage swing when coupled with a load resistance of 1kΩ.

💡 Hint: Use the formula for finding output voltage in small signal analysis.

Question 2

Given a BJT operates with a small signal current gain of 150 at a certain operating point. If the base current is 10μA, what will be the collector current? How will this value change if the operating point shifts causing β to drop to 120?

💡 Hint: Recall the relationship between Ic and Ib through β.

Challenge and get performance evaluation