Practice Current Relationships In Bjt (7.4) - Overview of Bipolar Junction Transistors (BJTs)

Practice: Current Relationships in BJT

Lesson 7.4Overview of Bipolar Junction Transistors (BJTs)

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10 questions

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6 sample questions

Question 1.
What is the relationship between the emitter current (IE), collector current (IC), and base current (IB)?
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Recall the main equation for these currents.
Question 2.
What does the symbol β represent in BJTs?
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Think about how BJTs amplify currents.
3Question 3.
What is the correct equation for emitter current in a BJT?
- IE = IC + IB
- IC = IE + IB
- IB = IC + IE
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Think about how currents are related in BJTs.
4Question 4.
True or False: The typical value of α in a BJT is approximately 1.
- True
- False
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Consider the efficiency of BJTs in terms of current amplification.
Question 5.
A circuit has a BJT with an emitter current of 8 mA and a collector current of 6 mA. Calculate the base current, current gain (β), and common base current gain (α).
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Use provided equations to isolate each current type and then use the ratios.
Question 6.
If a BJT operates with β = 200 and IB = 0.2 mA, what would be the collector current? Assuming no saturation effects.
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Remember the relationship between IB and IC through current gain.

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