The maximum efficiency of transformer coupled class A power amplifier is ___________
A. 30%
B. 50%
C. 80%
D. 45%
Answer: Option B
Related Questions on Transistor Audio Power Amplifiers
The output stage of a multistage amplifier usually employs ___________
A. Push-pull amplifier
B. Preamplifier
C. Class A power amplifier
D. None of the above
___________ coupling is generally employed in power amplifiers
A. Transformer
B. RC
C. direct
D. Impedance
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