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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a p-n junction?
💡 Hint: Think about the types of semiconductor materials.
Question 2
Easy
What causes the diffusion current?
💡 Hint: Remember how particles behave in a concentration gradient.
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 result of the diffusion process in a p-n junction?
- Creation of free holes
- Formation of depletion region
- Decrease in potential barrier
💡 Hint: Think about the overall changes at the junction.
Question 2
True or False: The drift current is always greater than the diffusion current in a p-n junction.
- True
- False
💡 Hint: Consider what happens when both currents start interacting.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a p-n junction diode with a large applied forward voltage. Explain the expected behavior of the current and what it indicates about the state of the junction.
💡 Hint: Focus on the relationship between voltage and current in a diode.
Question 2
Calculate the thickness of the depletion region if the concentration of dopants in the n-side is 10^15/cm^3 and in the p-side is 5x10^14/cm^3. Assume ideal conditions.
💡 Hint: Look at the relationships between doping levels and depletion width.
Challenge and get performance evaluation