Home
About Us
Contact Us
Privacy Policy
Search
Home
→
Electrical Engineering Mcqs
→
Transistor Audio Power Amplifiers
→
The most costly coupling is _______________ coupling?
Related MCQs
The output transformer used in a power amplifier is a __________ transformer?
The pulsating d.c. applied to power amplifier causes__________?
If the gain versus frequency curve of a transistor amplifier is not flat, then there is distortion ?
If the power rating of a transistor is 1W and collector current is 100mA, then maximum allowable collector voltage is__________?
What will be the collector efficiency of a power amplifier having zero signal power dissipation of 5 watts and a.c. power output of 2 watts ?
The driver stage usually employs__________?
The output signal voltage and current of a power amplifier are 5V and 200 mA; the values being r.m.s. What is the power output ?
The push-pull circuit must use __________ operation?
What turn ratio (Np/Ns) of transformer is required to match 4 O speaker to a transistor having an output impedance of 8000 O ?
For the same a.c. power output as above, what should be the minimum power rating of transistor for class B operation?
The maximum a.c. power output from a class A power amplifier is 10 W. What should be the minimum power rating of the transistor used ?
The class B push-pull circuit can deliver 100 W of a.c. output power. What should be the minimum power rating of each transistor ?
Power amplifiers generally use transformer coupling because transformer permits__________?
The most important consideration in power amplifier is __________?
A transformer coupled class A power amplifier has a load of 100 O on the secondary. If the turn ratio is 10:1, what is the value of load appearing on the primary?
Transformer coupling can be used in__________amplifiers?
An AF amplifier is shielded to __________?
The disadvantage of impedance matching is that it __________?
Class C amplifiers are used as __________?
A class A power amplifier uses __________?
The output stage of a multistage amplifier is also called __________-?
Class__________ power amplifier has the highest collector efficiency ?
The maximum efficiency of resistance loaded class A power amplifier is __________?
__________ coupling is generally employed in power amplifiers?
Power amplifiers handle __________ signals compare to voltage amplifiers?
The maximum efficiency of transformer coupled class A power amplifier is __________?
In class A operation, the operating point is generally located__________of the d.c. load line?
The maximum collector efficiency of class B operation is __________?
If a transistor is operated in such a way that output current flows for 60o of the input signal, then it is __________ operation?
A class A power amplifier is sometimes called__________amplifier?
A 2-transistor class B power amplifier is commonly called __________ amplifier?
A power amplifier has comparatively __________ ß ?
Low efficiency of a power amplifier results in__________?
When a transistor is cut off __________?
If the zero signal dissipation of a transistor is 1W, then power rating of the transistor should be at least__________?
The output stage of a multistage amplifier usually employs__________?
The size of a power transistor is made considerably large to__________?
Class __________ operation gives the maximum distortion?
The output stage of a multistage amplifier usually employs __________?
The most costly coupling is _______________ coupling?
A. RC
B. Direct
C. Impedance
D. Transformer
Correct Answer:
Transformer
✔
Last Updated:
July 30, 2021