Related Questions

If the current gain of the amplifier is X, its voltage gain is Y, then its power gain will be
A $$\frac{{\text{X}}}{{\text{Y}}}$$
B X × Y
C X + Y
D X - Y
The gain of an amplifier with feedback is known as ___________ gain
A Resonant
B Open loop
C Closed loop
D None of the above
On selling a chair at 7% loss and a table at 17% gain, a man gains Tk 296. If he sells the chair at 7% gain and the table at 12% gain, then he gains Tk. 400. The actual price of the table is ---
A Tk. 2400
B Tk. 2200
C Tk. 1800
D Tk. 1600
A class A power amplifier is sometimes called ___________ amplifier
A Symmetrical
B Single-ended
C Reciprocating
D Differential
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
The total gain of a multistage amplifier is less than the product of the gains of individual stages due to ___________
A Power loss in the coupling device
B Loading effect of the next stage
C The use of many transistors
D The use of many capacitors
If a transistor amplifier feeds a load of low resistance (e.g. speaker), then voltage gain will be ___________
A High
B Very high
C Moderate
D Low
When negative voltage feedback is applied to an amplifier, its voltage gain ___________
A Is increased
B Is reduced
C Remains the same
D None of the above
In order to get more voltage gain from a transistor amplifier, the transistor used should have ___________
A Thin base
B Thin collector
C Wide emitter
D None of the above
In an RC coupled amplifier, the voltage gain over mid-frequency range ___________
A Changes abruptly with frequency
B Is constant
C Changes uniformly with frequency
D None of the above

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