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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to current in a p-n junction during forward bias?
π‘ Hint: Think about the direction of voltage applied.
Question 2
Easy
Define beta (Ξ²) in the context of BJTs.
π‘ Hint: It is a measure of amplification in a BJT.
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 main purpose of a BJT?
- To amplify current
- To rectify voltage
- To create oscillations
π‘ Hint: Think about the role of small current in controlling larger currents.
Question 2
In a p-n junction under reverse bias, the current is minimal.
- True
- False
π‘ Hint: Recall the property of reverse bias in semiconductors.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If you have a BJT where V_BE is 0.7V and it results in a collector current of 5mA, what is the base current if Ξ² is 100?
π‘ Hint: Recall the formula relating collector and base currents.
Question 2
Given a BJT with a base width of 0.2 ΞΌm and D_p = 0.36 ΞΌmΒ²/s for holes, calculate how a change in base width affects the recombination of carriers in the base.
π‘ Hint: Think about how base width and carrier longevity relate.
Challenge and get performance evaluation