Practice Working Principle (7.3) - Overview of Bipolar Junction Transistors (BJTs)

Practice: Working Principle

Lesson 7.3Overview of Bipolar Junction Transistors (BJTs)

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8 questions

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6 sample questions

Question 1.
What are the three terminals of a BJT?
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Think about the structure of the transistor.
Question 2.
What happens at the emitter-base junction in an NPN transistor?
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Consider the biasing type.
3Question 3.
What is the function of the emitter-base junction in an NPN transistor?
- It blocks current flow
- It allows current to flow from collector to emitter
- It allows current to flow from emitter to base
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Think about the biasing direction.
4Question 4.
True or False: The collector-base junction in a BJT is forward biased.
- True
- False
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Recall the definitions of junction biasing.
Question 5.
If the base current (I_B) of a BJT is 10 mA and the current gain (β) is 100, what is the collector current (I_C)?
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Use the relationship between base current and collector current.
Question 6.
Explain how changing the biasing conditions on the collector-base junction could affect the operation of a BJT in a circuit.
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Consider the impact of reverse bias on current flow.

4 more questions in this section. Enroll free to practise them all.