8.2.5 - Equivalent circuit of the BJT
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What are the three regions of a BJT?
💡 Hint: Think of the layers of a sandwich.
Define forward bias in terms of BJT operation.
💡 Hint: What happens to a barrier when you add a positive voltage?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What defines the active region of a BJT?
💡 Hint: Think about how current flows through the BJT.
In the BJT, is the collector current equal to the sum of base and emitter currents?
💡 Hint: What relationship involves base, collector, and emitter currents?
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Demonstrate how varying the base width influences the overall current gain β in a BJT.
💡 Hint: Consider how carrier density and lifetime are affected.
If you increase the reverse bias on the collector junction, how does this affect the collector current?
💡 Hint: Think about how the electric field affects carriers in the depletion region.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.