Practice Current Components (8.5) - Revisiting BJT Characteristics (Contd.) - Part A

Practice: Current Components

Lesson 8.5Revisiting BJT Characteristics (Contd.) - Part A

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9 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What happens to the base-emitter junction of a BJT when it is forward biased?
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Think about the flow of carriers in response to the voltage.
Question 2.
Define the term 'minority carrier' in semiconductor physics.
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Consider what type of charge carriers exist in p-type versus n-type materials.
3Question 3.
What is the primary role of the base-emitter junction in a BJT?
- To block current
- To allow current flow
- To limit voltage
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Think about the current flow direction in a forward-bias state.
4Question 4.
The collector current (I_C) is dependent on which voltage in the BJT operation?
- V_CB
- V_BE
- Both V_CB and V_BE
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Focus on the primary voltage influencing collector behavior.
Question 5.
Calculate the emitter current I_E if the base current I_B is 50 μA and the collector current I_C is 200 μA.
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Remember the relationship between base, collector, and emitter currents.
Question 6.
Given the collector current is affected by the reverse bias, how would you design a circuit to optimize I_C in a high-speed application?
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Think about how design changes affect charge carrier flow.

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