Practice Concept of Transconductance - 15.2.4 | 15. Analysis of simple non - linear circuit containing a BJT (Contd.) | Analog Electronic Circuits - Vol 1
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Knowledge

15.2.4 - Concept of Transconductance

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Learning

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