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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the role of the coupling capacitor in an amplifier circuit?
💡 Hint: Think about how AC and DC interact in circuits.
Question 2
Easy
How does removing the coupling capacitor affect input resistance?
💡 Hint: Consider what happens when AC ground is removed.
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 the input resistance when the coupling capacitor is removed?
- It decreases
- It stays the same
- It increases
💡 Hint: Think about the effects of AC grounding.
Question 2
True or False: The voltage gain increases when you remove the coupling capacitor.
- True
- False
💡 Hint: Consider what effects the capacitor has on signal coupling.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a common base amplifier has a voltage gain of 100 with a coupling capacitor but drops to 10 without it, calculate the percentage decrease in voltage gain.
💡 Hint: Use the formula for percentage change to simplify your calculation.
Question 2
Assuming an input resistance of 50 ohms with a capacitor and 500 ohms without it, explain the implications of this difference in an amplifier's performance.
💡 Hint: Think about how input resistance affects signal integrity.
Challenge and get performance evaluation