Practice N-p-n Transistor Regions (8.3.1) - Revisiting BJT Characteristics (Contd.) - Part A

Practice: n-p-n Transistor Regions

Lesson 8.3.1Revisiting BJT Characteristics (Contd.) - Part A

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9 questions

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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What types of semiconductor materials are used in an n-p-n transistor?
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Remember the structure of the transistor!
Question 2.
What happens when the base-emitter junction is forward-biased?
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Think about how voltage affects carrier flow!
3Question 3.
What are the types of materials in an n-p-n transistor?
- p-n-p and n-p-n
- n-type and p-type
- exotic metals
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Refer back to the structure of the n-p-n transistor!
4Question 4.
True or False: In an n-p-n transistor, minority carriers increase when the base-emitter junction is forward-biased.
- True
- False
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Consider what happens with increased voltage!
Question 5.
Suppose you have a n-p-n transistor with a base-emitter voltage of 0.7V and a collector-emitter voltage of 5V. Calculate the possible changes in collector current if the base width decreases.
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Consider how the alterations in the base width affects carrier dynamics.
Question 6.
Design a circuit using an n-p-n transistor to amplify a weak signal. Assume relevant parameters for your design and explain calculations.
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Start with general transistor equations and adjust for the parameters you assume.

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