MCQ on Analog Electronics with Answers - 6
Multiple Choice Questions with Answers on Analog Electronics Circuits - 6
1
In RC coupled amplifier, dc component is
blocked by
a. load
resistance RL
b. coupling
resistance
c. transistor
d. bypass
capacitor
Answer: b
2
The amplifier produces least distortion
is
a. class
A
b. class
B
c. class
C
d. class
AB
Answer: a
3
Class A amplifier is used when
a. no
phase inversion is required
b. highest
voltage gain is required
c. dc
voltages are to be amplified
d. minimum
distortion is required
Answer: a
4
Maximum theoretical collector circuit
efficiency of class A amplifier is
a.
15%
b.
78.5%
c.
25%
d.
50%
Answer: c
5
Maximum theoretical collector circuit
efficiency of transformer coupled class A amplifier is
a.
15%
b.
78.5%
c.
25%
d.
50%
Answer: d
6
Maximum theoretical collector circuit
efficiency class B amplifier is
a. 15%
b. 25%
c. 78.5%
d. 50%
Answer: c
7
A transistor amplifier with collector
circuit efficiency of 80% will certainly be
a. class
A
b. class
B
c. class
C
d. class
AB
Answer: c
8
A transistor amplifier with collector
circuit efficiency of 15% is likely to be
a. class
A
b. class
B
c. class
C
d. class
AB
Answer: a
9
Which class of amplifier has the lowest collector
circuit efficiency
a. class
A
b. class
B
c. class
C
d. class
AB
Answer: a
10
Harmonic distortion in an amplifier is
caused by
a. nonlinear
characteristics of the active device
b. reactive
elements in the circuit
c. power
supply of the amplifier
d. positive
feedback in the circuit
Answer: a
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