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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary use of the T-Model?
💡 Hint: Think about what small-signal models are generally used for.
Question 2
Easy
How do you calculate emitter resistance (r_e)?
💡 Hint: Recall the thermal voltage and the DC emitter current.
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 the T-Model simplify?
- Only gain calculations
- BJT circuits with emitter resistors
- High-frequency circuits
💡 Hint: Consider what models are designed for which types of circuits.
Question 2
True or False: The dependent current source in the T-Model represents how output currents are affected by input signal fluctuations.
- True
- False
💡 Hint: Remember the conceptual interactions in an amplifier.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a circuit using a BJT with a specified gain of -50 using the T-Model. Calculate the required values for r_e and any resistors needed.
💡 Hint: Start by calculating the necessary r_e and then relate the transistor parameters to find resistor values.
Question 2
Given a V_T of 25 mV, and a range of I_E from 0.5 mA to 2 mA, determine the r_e values at both extremes and discuss how it would affect circuit performance.
💡 Hint: Think about how small-signal parameters change the response of the amplifier and its stability.
Challenge and get performance evaluation