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Electronic Devices - Power Amplifiers

Exercise : Power Amplifiers - General Questions
31.
Which of the push-pull amplifiers is presently the most popular form of the class B power amplifier?
Quasi-complementary
Transformer-coupled
Complementary-symmetry
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Refer to this figure. The approximate voltages on the base, collector, and emitter, respectively, are

0.7 V, 6.8 V, 0 V.
0 V, 0 V, 0 V.
0.7 V, 15 V, 0 V.
0.7 V, 0 V, 15 V.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Calculate the harmonic distortion component for an output signal having a fundamental amplitude of 3 V and a second harmonic amplitude of 0.25 V.
3.83%
38.3%
83.3%
8.33%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Which amplifier is commonly used as a frequency multiplier?
class A
class B
class C
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
You find that there is no output signal. You measure the dc voltage of Q1 emitter and find it equal to 0 V. The trouble might be

D1 is shorted.
D2 is shorted.
R1 is open.
no trouble, everything is normal.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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