Practice Expression of Voltage Gain - 27.2.1 | 27. Common Emitter Amplifier (contd.) (Part B) | 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

27.2.1 - Expression of Voltage Gain

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

Define voltage gain in the context of an amplifier.

💡 Hint: Think about how voltage is amplified in a circuit.

Question 2

Easy

What does the negative sign in the voltage gain formula indicate?

💡 Hint: Recall the phase relationship between input and output.

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 formula for the voltage gain of a common emitter amplifier?

  • A = -g_m * R_C / (1 + g_m * R_E)
  • A = g_m * R_C / (1 - g_m * R_E)
  • A = g_m * R_E / R_C

💡 Hint: Look for the relationship between transconductance and the resistors involved.

Question 2

True or False: A larger emitter resistor will always increase voltage gain.

  • True
  • False

💡 Hint: Consider the effects of component values on gain.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Determine the effects on voltage gain if you increase $R_E$ from 1kΩ to 10kΩ, while keeping $g_m$ and $R_C$ constant. Explain your reasoning.

💡 Hint: Consider how changing resistances affects the gain formula.

Question 2

If an amplifier circuit has a fixed input signal and you modify the output load resistance, what will be the impact on the voltage gain? Discuss the underlying principles.

💡 Hint: Think about the output characteristics and load effect in circuits.

Challenge and get performance evaluation