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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is transconductance?
💡 Hint: Think about how input voltage changes affect current output.
Question 2
Easy
Why is the Q-point important in amplifier design?
💡 Hint: Consider how operating points relate to output signal quality.
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 does transconductance (g_m) measure?
- Current to Voltage ratio
- Voltage to Current change
- Current change per Voltage change
💡 Hint: Focus on what happens to current when voltage varies.
Question 2
True or False: The Q-point should always be set at the highest part of the output characteristic curve for maximum amplification.
- True
- False
💡 Hint: Consider the implications of different operating points.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a common emitter amplifier has a transconductance of 40 mA/V, and the base voltage increases by 0.05 V, what will be the change in collector current?
💡 Hint: Use the transconductance formula.
Question 2
A BJT amplifier enters saturation when the collector current exceeds 10 mA. If the collector current is initially 8 mA, what range of increase in input voltage would keep it within linear operation?
💡 Hint: Consider g_m for your calculations and ensure the collector current remains less than 10 mA.
Challenge and get performance evaluation