Practice Small Signal Parameters and Voltage Gain Calculation - 58.1.6 | 58. Multi-Transistor Amplifiers (Contd.): Numerical Examples (Part A) | Analog Electronic Circuits - Vol 3
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Knowledge

58.1.6 - Small Signal Parameters and Voltage Gain Calculation

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the formula for calculating transconductance (g_m)?

💡 Hint: Recall the relationship between collector current and the thermal voltage.

Question 2

Easy

Define the term 'Operating Point.'

💡 Hint: Think about when a transistor works efficiently in an amplifier.

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) indicate?

  • Control of output current by input voltage
  • Resistance in the output
  • Frequency response of the circuit

💡 Hint: In your understanding, think of g_m as reflecting the sensitivity of the amplifier.

Question 2

True or False: A common collector stage always increases the voltage gain.

  • True
  • False

💡 Hint: Evaluate the role of the CC stage in overall configurations.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a CE amplifier with an input current of 20 μA and a beta of 150, calculate the collector current I_C and verify its effect on transconductance g_m for an assumed V_T of 26 mV.

💡 Hint: Use the relationship between beta and collector current.

Question 2

Design a multi-stage amplifier using both CE and CC configurations, and explain the effect of each configuration on gain and bandwidth in a summary report.

💡 Hint: Focus on the interactive role of both configurations in the cascading design.

Challenge and get performance evaluation