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Electronic Devices - Power Amplifiers

Exercise : Power Amplifiers - General Questions
41.
Which of the following describe(s) a power amplifier?
It can handle large power.
It can handle large current.
It does not provide much voltage gain.
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Categorize the power efficiency of each class of amplifier, from worst to best.
A, B, AB, D
A, AB, D, B
A, AB, B, D
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Which operation class is generally used in radio or communications?
A
B
AB
C
D
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
In a class AB amplifier, if the VBE drops are not matched to the diode drops or if the diodes are not in thermal equilibrium with the transistors, this can result in
a current mirror.
diode separation.
crossover distortion.
thermal runaway.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
The least efficient amplifier among all classes is
class B.
class A.
class AB.
class C.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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