Exercise: Power Amplifiers

Questions for: Power Amplifiers

The efficiency of any amplifier is the ratio of signal output power to signal input power.
A:
True
B:
False
C:
D:
Answer: B
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Class A amplifiers operate in the active region of the load line all of the time.
A:
True
B:
False
C:
D:
Answer: A
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Class AB operation always requires a dual (+/–) supply.
A:
True
B:
False
C:
D:
Answer: B
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In a class B push-pull amplifier, crossover distortion occurs when both transistors are off and the input signal voltage must exceed VBE before a transistor conducts.
A:
True
B:
False
C:
D:
Answer: A
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A class C amplifier is a linear amplifier.
A:
True
B:
False
C:
D:
Answer: B
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