MCQ on Analog Electronics with Answers - 4

 

 Multiple Choice Questions with Answers on Analog Electronics Circuits - 4


1. Voltage gain of a typical CC amplifier stage is of the order of

a.       0.99

b.      50

c.       200

d.      5

Answer:  a

 

2.  Current gain of amplifier stage is lowest in

a.       CB configuration

b.      CE configuration

c.       CC configuration

d.      Same in all configurations

Answer: a

 

3. Voltage gain of amplifier stage is lowest in

a.       CB configuration

b.      CE configuration

c.       CC configuration

d.      Same in all configurations

Answer: c

 

4.  Transistor amplifier stage has lowest input impedance in

a.       CB configuration

b.      CE configuration

c.       CC configuration

d.      Same in all configurations

Answer: a

 

5. Transistor amplifier stage has highest input impedance in

a.       CB configuration

b.      CE configuration

c.       CC configuration

d.      Same in all configurations

Answer: c

 

6.  Intermediate stages in a multistage amplifier are always in

a.       CB configuration

b.      CE configuration

c.       CC configuration

d.      May have any configurations

Answer: b

 

7. Input resistance of ideal voltage amplifier and ideal current amplifier are respectively

a.       infinite, zero

b.      zero, infinite

c.       infinite, infinite

d.      zero, zero

Answer: a

 

8. The current stability of an emitter follower may be improved by

a.       increasing emitter circuit resistance and decreasing base circuit resistance

b.      increasing emitter circuit resistance and increasing base circuit resistance

c.       increasing emitter circuit and base circuit resistances

d.      decreasing emitter circuit and base circuit resistances

Answer: a

 

9.  Which of the following configurations of transistor gives useful current gain?

a.       CB configuration

b.      CE configuration

c.       CC configuration

d.      Both CE & CC configurations

Answer: d

 

10. A carbon microphone having resistance of 100Ω feeds a pre-amplifier. The best transistor configuration for pre-amplifier is

a.       CB configuration

b.      CE configuration

c.       CC configuration

d.      Both CE & CC configurations

Answer: a

 

Hope this post on "MCQ on Analog Electronics with Answers-4" will help Electronics Engineering and Electrical Engineering students in preparation of technical interviews, GATE, IES etc.

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