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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define voltage gain in a common emitter amplifier.
💡 Hint: Think about what it represents regarding the input and output levels.
Question 2
Easy
What does the emitter resistor (RE) do?
💡 Hint: Consider how changing components affect the voltage levels.
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 is the formula for voltage gain in a common emitter amplifier?
- A = - gm * RE / RC
- A = - gm * RC / (1 + gm * RE)
- A = gm * RE / RC
💡 Hint: Remember the roles of gm and resistors in the gain calculation.
Question 2
True or False: The presence of an emitter resistor (RE) always increases voltage gain.
- True
- False
💡 Hint: Think about the dual role of RE in the circuit.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a common emitter amplifier that achieves a voltage gain of -15 with noted constraints of sigma voltage sources. Discuss how to maintain an operating point.
💡 Hint: Focus on practical resistor designs related to gain expressions.
Question 2
Analyze the scenario where you replace RE with a capacitor. What changes occur in gain and stability? Provide calculations.
💡 Hint: Think of AC analysis differentiating impacts on both frequency responses.
Challenge and get performance evaluation