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Electrical Engineering
Multistage Transistor Amplifiers
Quiz 4
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Q.1
In the initial stages of a multistage amplifier, we use ___________
RC coupling
Transformer coupling
Direct coupling
None of the above
Q.2
A radio receiver has ___________ of amplification
One stage
Two stages
Three stages
More than one stages
Q.3
RC coupling is used for ___________ amplification
Voltage
Current
Power
None of the above
Q.4
Transformer coupling is used for ___________ amplification
Power
Voltage
Current
None of the above
Q.5
The gain of an amplifier is expressed in db because ___________
It is a simple unit
Calculations become easy
Human ear response is logarithmic
None of the above
Q.6
The number of stages that can be directly coupled is limited because
Changes in temperature cause thermal instability
Circuit becomes heavy and costly
It becomes difficult to bias the circuit
None of the above
Q.7
If the power level of an amplifier reduces to half, the db gain will fall by .
5 db
2 db
10 db
3 db
Q.8
A current amplification ofis a gain of ___________
3 db
66 db
20 db
200 db
Q.9
RC coupling is not used to amplify extremely low frequencies because
There is considerable power loss
There is hum in the output
Electrical size of coupling capacitor becomes very large
None of the above
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