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Electronic Devices - Power Amplifiers

Exercise : Power Amplifiers - General Questions
16.
What is the maximum temperature rating for silicon power transistors?
50º to 80º
100º to 110º
150º to 200º
250º to 300º
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
What is the maximum efficiency of a class A circuit with a direct or series-fed load connection?
90%
78.5%
50%
25%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
You have an oscilloscope across RL and it shows a zero signal voltage. The problem might be that

C3 is open.
BE1 is open.
BE2 is open.
R1 is open.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Which class of amplifier operates in the linear region for only a small part of the input cycle?
A
B
C
AB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The Q-point is at cutoff for class ________ operation.
A
B
C
AB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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