A. There is considerable power loss
B. There is hum in the output
C. Electrical size of coupling capacitor becomes very large
D. None of the above
0
1 db corresponds to_____________change in voltage or current level?
0
The total gain of a multistage amplifier is less than the product of the gains of individual stages due to____________?
A. 40%
B. 80%
C. 20%
D. 25%
0
A current amplification of 2000 is a gain of_________________?
A. Power loss in the coupling device
B. Loading effect of the next stage
C. The use of many transistors
The use of many capacitors
0
The purpose of RC or transformer coupling is to_____________?
A. 3 db
B. 66 db
C. 20 db
D. 200 db
0
The value of emitter capacitor CE in a multistage amplifier is about____________?
A. Block a.c.
B. Separate bias of one stage from another
C. Increase thermal stability
None of the above
0
RC coupling is generally confined to low power applications because of____________?
A. 1 µF
B. 100 pF
C. 0.01 µF
D. 50 µF
0
An amplifier receives 0.1 W of input signal and delivers 15 W of signal power. What is the power gain in db?
A. Large value of coupling capacitor
B. Low efficiency
C. Large number of components
D. None of the above
0
The gain of an amplifier is expressed in db because_____________?
A. 8 db
B. 6 db
C. 5 db
D. 4 db
0
The frequency response of transformer coupling is___________?
A. It is a simple unit
B. Calculations become easy
C. Human ear response is logarithmic
D. None of the above
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