Preview of practice Output Resistance Analysis (27.6) - Common Emitter Amplifier (contd.) (Part B)
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

Output Resistance Analysis

Practice - Output Resistance Analysis

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define voltage gain in a common emitter amplifier.

💡 Hint: Think about what it represents regarding the input and output levels.

Question 2 Easy

What does the emitter resistor (RE) do?

💡 Hint: Consider how changing components affect the voltage levels.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for voltage gain in a common emitter amplifier?

A = - gm * RE / RC
A = - gm * RC / (1 + gm * RE)
A = gm * RE / RC

💡 Hint: Remember the roles of gm and resistors in the gain calculation.

Question 2

True or False: The presence of an emitter resistor (RE) always increases voltage gain.

True
False

💡 Hint: Think about the dual role of RE in the circuit.

Get performance evaluation

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a common emitter amplifier that achieves a voltage gain of -15 with noted constraints of sigma voltage sources. Discuss how to maintain an operating point.

💡 Hint: Focus on practical resistor designs related to gain expressions.

Challenge 2 Hard

Analyze the scenario where you replace RE with a capacitor. What changes occur in gain and stability? Provide calculations.

💡 Hint: Think of AC analysis differentiating impacts on both frequency responses.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.