Related Questions

The output power of a transistor amplifier is more than the input power because the additional power is supplied by ___________
A Transistor
B Biasing circuit
C Collector supply VCC
D None of the above
A class A power amplifier is sometimes called ___________ amplifier
A Symmetrical
B Single-ended
C Reciprocating
D Differential
The maximum efficiency of transformer coupled class A power amplifier is ___________
A 30%
B 50%
C 80%
D 45%
The bandwidth of a single stage amplifier is ___________ that of a multistage amplifier
A More than
B The same as
C Less than
D Data insufficient
Power amplifiers generally use transformer coupling because transformer per-mits
A Cooling of the circuit
B Impedance matching
C Distortionless output
D Good frequency response
A transistor amplifier has high output impedance because ___________
A Emitter is heavily doped
B Collector has reverse bias
C Collector is wider than emitter or base
D None of the above
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
The value of collector load RC in a transistor amplifier is ___________ the output impedance of the transistor.
A The same as
B Less than
C More than
D None of the above
The phase difference between the output and input voltages of a CE amplifier is ___________
A 180°
B 0°
C 90°
D 270°
The ratio of output impedance of a CE amplifier is ___________
A About 1
B Low
C High
D Moderate

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