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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for transconductance (g_m)?
💡 Hint: Think about how input and output relate in the context of voltage.
Question 2
Easy
Define the term 'cascode amplifier.'
💡 Hint: Remember the structure involves stacking two amplifier stages.
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 advantage of a cascode amplifier?
- Increased Gain
- Reduced Noise
- Higher Bandwidth
💡 Hint: Think about performance characteristics and their relation to signal fidelity.
Question 2
True or False: The output resistance of a cascode amplifier is typically lower than that of a common emitter amplifier.
- True
- False
💡 Hint: Consider the structural differences between the amplifier types.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A cascode amplifier uses two BJTs in series with a collector current of 3 mA and Early voltage of 150 V. Calculate the output resistance.
💡 Hint: Apply the Early voltage and Collector current relationship.
Question 2
Given a cascode amplifier circuit with an input capacitance of 30 pF and transconductance of 500 mS, what is the cutoff frequency?
💡 Hint: Consider the impact of capacitance on frequency response in amplifiers.
Challenge and get performance evaluation