Preview of practice Circuit Description (32.1.6) - Common Source Amplifier (Part A)
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Circuit Description

Practice - Circuit Description

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the main role of biasing in a common source amplifier?

💡 Hint: Think about how a BJT operates.

Question 2 Easy

Why is the source terminal termed 'common' in a common source amplifier?

💡 Hint: Consider the structure of the circuit.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a common source amplifier primarily used for?

Voltage gain
Current gain
Power gain

💡 Hint: Recall the main function of amplifiers.

Question 2

True or False: The gate current in a MOSFET common source amplifier is zero.

True
False

💡 Hint: Think about how a MOSFET is designed.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A common source amplifier has a transconductance of 2 mS. If the biasing voltage is set at 3V and the threshold voltage is 1.5V, calculate the output current when the input signal voltage is 0.5V.

💡 Hint: Always plug the numbers into the transconductance equation.

Challenge 2 Hard

Design a common source amplifier circuit for a specific application requiring a gain of 10 with a load resistor of 1kΩ. What value of the drain resistor should be used?

💡 Hint: Think about the relationship between resistance and gain in your design.

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Reference links

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