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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define input impedance.
π‘ Hint: Think about what the amplifier accepts.
Question 2
Easy
What is voltage gain?
π‘ Hint: Consider how much the signal is amplified.
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 high input impedance help prevent?
- Signal attenuation
- Signal integrity loss
- Increased noise
π‘ Hint: Think about how the circuit interacts with the previous one.
Question 2
True or False: The ideal voltage gain for a buffer amplifier is less than 1.
- True
- False
π‘ Hint: Remember what a buffer does in an amplifier configuration.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Determine the input impedance of a common collector amplifier with configurations leading to a base current of 10 Β΅A, load current of 0.5 mA, Ξ² of 120, and resistance of 4.7kΞ©.
π‘ Hint: Start by calculating each term separately.
Question 2
Analyze how changes in load capacitance to 10 pF from 100 pF alters the performance characteristics of a common drain amplifier with respect to its upper cutoff frequency.
π‘ Hint: Plug into the upper cutoff formula and see the difference.
Challenge and get performance evaluation