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

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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%

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What is the conduction angle of class A amplifier?

Options

A : 90

B : 180

C : 270

D : 360

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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

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Basic operation of Class A amplifiers____________

Options

A : Crossover distortion

B : Law of Conservation of energy

C : Millers law

D : Switching transistor theory

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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

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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

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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

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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

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An ideal large signal amplifier delivers 100% DC power to its load.

Options

A : True

B : False

C :

D :

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