Practice Capacitive Effects in BJTs (Bipolar Junction Transistors) - 4.1.1 | Module 4: High-Frequency Amplifier Analysis and Power Amplifiers | Analog Circuits
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.

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is junction capacitance in BJTs?

💡 Hint: Think about how voltage changes affect this capacitance.

Question 2

Easy

Name the two primary junction capacitances in BJTs.

💡 Hint: Recall where these capacitances are located.

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 primary role of junction capacitance in BJTs?

  • Decrease gain
  • Increase gain
  • Limit bandwidth

💡 Hint: Think about how BJTs behave at high frequency.

Question 2

True or False: The Miller Effect can amplify input capacitance due to feedback from the output.

  • True
  • False

💡 Hint: Consider how feedback between terminals works.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A BJT has a collector current of 10 mA, and its diffusion capacitance is measured at 20 pF. If the current varies, calculate the new diffusion capacitance if it increases to 20 mA.

💡 Hint: Use the relationship between collector current and diffusion capacitance.

Question 2

In a high-frequency application, how would you optimize the design to minimize the impact of collector-base junction capacitance on amplifier gain?

💡 Hint: Consider how changes in amplifier gain or configuration can mitigate these effects.

Challenge and get performance evaluation