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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is reverse bias in a semiconductor?
💡 Hint: Think of it as a way to push current away from a junction.
Question 2
Easy
Define minority carriers in the context of BJTs.
💡 Hint: They're not the primary carriers.
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 minority carrier density when reverse bias is applied?
- Decreases toward zero
- Increases uniformly
- Remains the same
- Increases only at x=0
💡 Hint: Consider the behavior of carriers in an opposing voltage.
Question 2
True or False: A BJT with isolated junctions behaves like two back-to-back diodes.
- True
- False
💡 Hint: Think about the necessary conditions for transistor operation.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A transistor is operating at a reverse bias. Describe the step-by-step process of how a small change in the reverse bias affects the collector current.
💡 Hint: Look at how current varies as you adjust bias.
Question 2
Under various reverse bias values, derive the relationship of junction proximity to collector current and the resulting implication on transistor function.
💡 Hint: Think about what happens to the spatial profile of carriers.
Challenge and get performance evaluation