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
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