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Electronic Devices - BJT Amplifiers

Exercise : BJT Amplifiers - General Questions
51.
Which of the following configurations has an output impedance Zo equal to RC?
Fixed-bias common-emitter
Common-emitter voltage-divider with bypass capacitor
Common-emitter voltage-divider without bypass capacitor
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
52.
Refer to this figure. Find the value of Rin(base).

420
50 k
940
100.8
Answer: Option
Explanation:
No answer description is available. Let's discuss.
53.
For a common-emitter amplifier, the purpose of the emitter bypass capacitor is
no purpose, since it is shorted out by RE.
to reduce noise.
to despike the supply voltage.
to maximize amplifier gain.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
54.
For BJT amplifiers, the ________ gain typically ranges from a level just less than 1 to a level that may exceed 1000.
voltage
current
impedance
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
55.
The loaded voltage gain of an amplifier is always more than the no-load level.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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