8.1.2 - Department of Electronics and Electrical Communication Engineering
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Practice Questions
Test your understanding with targeted questions
What two types of bias can a BJT operate under?
💡 Hint: Think about the potential difference applied to the p-n junctions.
What does the term 'forward bias' mean?
💡 Hint: Consider which way current flows in the device.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to the collector current when the base-emitter voltage increases?
💡 Hint: Consider the exponential I-V relationship.
True or False: The base current is always larger than the collector current.
💡 Hint: Think about the definitions and roles of collector and base currents.
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Challenge Problems
Push your limits with advanced challenges
If the base-emitter voltage is increased to 0.7 V, estimate the increase in collector current assuming the saturation current is 1µA.
💡 Hint: Ensure to consider thermal voltage V_T at room temperature (~25 mV).
How would the BJT's performance change if the emitter doping is increased drastically?
💡 Hint: Think about the implications of minority carrier lifetimes and gradients.
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Reference links
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