Practice Signal Feeding and Output Analysis - 76.1.3 | 76. Differential Amplifier : Basic Structure and Principle of Operation (Contd.) | 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.

Typing
Memory
Math
English Adventures
Knowledge

76.1.3 - Signal Feeding and Output Analysis

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 role does the tail resistor play in a differential amplifier?

💡 Hint: Consider how biasing affects transistor operation.

Question 2

Easy

What happens to the output signal if the input V_in1 is greater than V_in2?

💡 Hint: Think about the output phase in relation to input.

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 role of the tail resistor in a differential amplifier?

  • It connects the output.
  • It provides biasing for the transistors.
  • It acts as a signal input.

💡 Hint: Consider the importance of stability in operations.

Question 2

In which scenario would you expect higher differential gain?

  • True
  • False

💡 Hint: Think about the phase relationship of inputs.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You are designing a differential amplifier with a target differential gain of 100. If you have a resistor of 2kΩ, what must the transconductance (g_m) be?

💡 Hint: Think about rearranging the gain formula to isolate g_m.

Question 2

A BJT differential amplifier outputs an inverted signal of -5V when inputs of +2V and -2V are applied. Determine the common mode gain if both input signals were adjusted to +2V.

💡 Hint: Evaluate the characteristics of identical input signals.

Challenge and get performance evaluation