Electronic Devices Circuits Class A Large Signal Amplifiers Online Exam Quiz
Electronic Devices Circuits Class A Large Signal Amplifiers GK Quiz. Question and Answers related to Electronic Devices Circuits Class A Large Signal Amplifiers. MCQ (Multiple Choice Questions with answers about Electronic Devices Circuits Class A Large Signal Amplifiers
What is the efficiency of Class A amplifiers?
Options
A : 30 or less
B : 50 or less
C : 100
D : 75
If DC power for a Class A amplifier is 500W and AC power is 150W, what is its efficiency?
Options
A : 50%
B : 75%
C : 20%
D : 30%
What is the conduction angle of class A amplifier?
Options
A : 90
B : 180
C : 270
D : 360
Which of the following technique is used to increase the efficiency of class A amplifier?
Options
A : By using FET
B : By using PNP transistor
C : By using matched transformers as load
D : By using potentiometers as load
Basic operation of Class A amplifiers____________
Options
A : Crossover distortion
B : Law of Conservation of energy
C : Millers law
D : Switching transistor theory
What does class A amplifier do?
Options
A : Delivers KV of voltage to load
B : Delivers KW of power
C : Delivers Kilo Pascal pressure
D : Delivers more resistance
Why do we use CE amplifier as a large signal class a amplifier?
Options
A : It has very high output impedance
B : It has very high input impedance
C : It has very high voltage gain
D : It is very much stable
Which of the following statement is true about class A amplifiers?
Options
A : They are weak against distortions
B : They supress noise signals
C : More efficient
D : Delivers 100% power to load
Why there is a need for heat sinks in Class A amplifier?
Options
A : To control the external temperature
B : To avoid temperature changes affecting the transistor
C : To control heat dissipation
D : To increase output resistance
An ideal large signal amplifier delivers 100% DC power to its load.
Options
A : True
B : False
C :
D :
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