Practice Calculation of DC Currents through Transistors - 89.2.2 | 89. Numerical examples on current mirror and its applications (Part-D) | Analog Electronic Circuits - Vol 4
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 the purpose of a current mirror in a transistor circuit?

💡 Hint: Think about current duplication.

Question 2

Easy

How do you calculate the voltage output in a transistor circuit?

💡 Hint: Use the formula: Vout = Vsup - Vbe.

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 function of a current mirror?

  • To amplify current variations
  • To maintain constant current
  • To reduce circuit complexity

💡 Hint: Focus on what current mirrors do.

Question 2

True or False: Quiescent current refers to the current flowing through the amplifier when no signal is applied.

  • True
  • False

💡 Hint: Consider when the circuit is active versus idle.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a differential amplifier with a current mirror load. Calculate the DC current through each transistor when the supply voltage is 12 V and the resistor is set to 10 kΩ.

💡 Hint: Readjust your calculations based on loading effects.

Question 2

Given that the common mode gain is significantly lower than differential gain, discuss how this affects signal integrity in real-world applications.

💡 Hint: Think about how noise affects behavior in circuits.

Challenge and get performance evaluation