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Study MCQ
Electronics Mechanic
TRANSISTOR AMPLIFIER
Set 5
Set 5
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Q4516
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How does the values of bias resistors selected for collector current in class -B amplifiers?
A
Q point set slightly below cut-off
B
Quiescent current at mid point
C
Quiescent current beyond the cut-off point
D
Quiescent current over the cut-off value
Q4517
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Which parameter of passive component can be calculated using the formula ?
A
Capacitance
B
Inductance
C
Capacitive reactance
D
Inductive reactance
Q4518
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Which type of amplifier is used to operate the loud speaker?
A
IF Amplifier
B
RF Amplifier
C
Power Amplifier
D
Voltage Amplifier
Q4519
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What is the advantage of silicon over germanium for transistor fabrication?
A
Lower thermal stability
B
Higher thermal stability
C
Lower operating voltage
D
Higher amplification factor
Q4520
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What is the effeciency transformer coupled class A amplifier?
A
Less than 20%
B
About 50%
C
More than 60%
D
Unity
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