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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the expression for the voltage gain in a common emitter amplifier?
💡 Hint: Look for the formula relating gain to the resistors.
Question 2
Easy
Define input resistance in the context of amplifiers.
💡 Hint: Remember how the amplifier behaves towards the incoming signal.
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 happens to voltage gain if emitter resistance is increased?
- Gain increases
- Gain decreases
- No change
💡 Hint: Remember the feedback effect introduced by RE.
Question 2
True or False: The output resistance of a common emitter amplifier is always equal to RC.
- True
- False
💡 Hint: Consider what else influences Ro.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You're designing a common emitter amplifier. If you decide on a gain of -15, how would you choose RE relative to RC, and what are the implications?
💡 Hint: Use the voltage gain formula and consider all resistances involved.
Question 2
If you have a specific β value and need a target input resistance of 1kΩ, how would you determine the correct RE?
💡 Hint: Rearrange the input resistance formula effectively.
Challenge and get performance evaluation