Electronics - Bipolar Junction Transistors (BJT)

Exercise :: Bipolar Junction Transistors (BJT) - General Questions

21. 

If a 2 mV signal produces a 2 V output, what is the voltage gain?

A. 0.001
B. 0.004
C. 100
D. 1000

Answer: Option D

Explanation:

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22. 

The symbol hfe is the same as:

A. mca12_1001a1.gif
B. mca12_1001b1.gif
C. hi-fi
D. mca12_1001d1.gif

Answer: Option A

Explanation:

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23. 

Most of the electrons in the base of an NPN transistor flow:

A. out of the base lead
B. into the collector
C. into the emitter
D. into the base supply

Answer: Option B

Explanation:

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24. 

In a transistor, collector current is controlled by:

A. collector voltage
B. base current
C. collector resistance
D. all of the above

Answer: Option B

Explanation:

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25. 

Total emitter current is:

A. IE – IC
B. IC + IE
C. IB + IC
D. IB – IC

Answer: Option C

Explanation:

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