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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the Fermi level and why is it important in a PN junction?
💡 Hint: Think about where the electrons are likely to be found.
Question 2
Easy
What occurs to the conduction and valence bands in a PN junction?
💡 Hint: Visualize the effect of electric charges on the energy 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 remains constant across a PN junction?
- Fermi Level
- Conduction Band
- Valence Band
💡 Hint: Think about which level indicates stability.
Question 2
Built-in potential opposes the diffusion of carriers.
- True
- False
💡 Hint: Consider the role of potential in controlling flow.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a PN junction with a known built-in potential of 0.7V, calculate the energy band bending for both conduction and valence bands when the junction is at equilibrium.
💡 Hint: Consider how potentials correlate with energy states.
Question 2
Discuss the implications of changing temperature on the Fermi level in a PN junction and how this affects the overall performance of the diode.
💡 Hint: Explore the relationship between temperature and conductivity.
Challenge and get performance evaluation