Worksheets20EC205 - Analog Electronics (2023-2027 Batch)
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
ROLL NO
4 lines
2.
Course Instuctor
a)
Dr.K.R.Prabha,ASP/ECE
b)
Mrs.V.Anupriya, AP/ECE
c)
Mr.M.Selvaganesh, AP/ECE
3.
Name of the Student
4 lines
4.
1. In class B power amplifier, the output current flows for,
a)
less than half input cycle
b)
more than half input cycle
c)
Half input cycle
d)
Entire half cycle
5.
2. Which power amplifier has the highest collector efficiency?
a)
A
b)
B
c)
C
d)
D
6.
3. The crossover distortion characteristics of,
a)
Class A output stage
b)
Common base output stage
c)
Class AB output stage
d)
Class B output stage
7.
4. The use of amplifier in a circuit is to ______ for the input signal.
a)
Provide phase shift
b)
Provide strength
c)
Provide frequency enhancement
d)
make circuit compatible
8.
5.The component of Class D component are given below. Arrange these in order of their use from input towards output.
(A) Amplifier (B) Comparator (C) Sawtooth generator (D) Low pass filter
a)
a) C,D,B,A
b)
b) D,A,B,C
c)
c) C,B,A,D
d)
d) B,C,D,A
9.
6. Power amplifier directly amplifies_______ of the signal
a)
Voltage
b)
Current
c)
Power
d)
All
10.
7. For a perfect Power amplifier output power rating will be ________ if the output impedance is halved.
a)
Halved
b)
Squared
c)
Doubled
d)
Square rooted
11.
8. The power rating of the amplifier is 100watts then the transistor can only operate at ___
a)
Power higher than 100watts
b)
Power lower than 100watts
c)
Power near to 100watts
d)
Power less than 200 Watts
12.
9. The principal advantages of BJTs over MOSFETs are that
a)
voltage drop across the transistor is important
b)
they are not as prone to ESD
c)
both a and b are correct
d)
both a and b are false
13.
10. Class ________ amplifiers are normally operated in a push-pull configuration in order to produce an output that is a replica of the input.
a)
A
b)
B
c)
C
d)
AB
100 %
