Q.1
The total gain of a multistage amplifier is less than the product of the gains of individual stages due to ___________
Q.2
In practice, voltage gain is expressed ___________
Q.3
The upper or lower cut off frequency is also called ___________ frequency
Q.4
The best frequency response is of ___________ coupling
Q.5
The bandwidth of a single stage amplifier is ___________ that of a multistage amplifier
Q.6
Transformer coupling is generally employed when load resistance is
Q.7
In RC coupling, the value of coupling capacitor is about ___________
Q.8
The ear is not sensitive to ___________
Q.9
1 db corresponds to ___________ change in power level
Q.10
An amplifier receives 0.1 W of input signal and delivers 15 W of signal power. What is the power gain in db?
Q.11
An advantage of RC coupling scheme is the ___________
Q.12
When a multistage amplifier is to amplify d.c. signal, then one must use coupling
Q.13
1 db corresponds to ___________ change in voltage or current level
Q.14
In an RC coupled amplifier, the voltage gain over mid-frequency range ___________
Q.15
The purpose of RC or transformer coupling is to ___________
Q.16
The frequency response of transformer coupling is ___________
Q.17
RC coupling is generally confined to low power applications because of
Q.18
___________ coupling provides the maximum voltage gain
Q.19
The final stage of a multistage amplifier uses ___________
Q.20
In obtaining the frequency response curve of an amplifier, the ___________
0 h : 0 m : 1 s