August
T05/TES042/EE/20150822
2015
Basic Electronics -2
Instructions:
MARKS-80
Time: 3 Hrs
1. All questions are compulsory.
2. “Long Answer type Question (LAQ)” is a supply type
question of 15 marks which required a typical answer of about
60-80 lines in bout 32-40 minutes.
3. “Sort Answer type Question (SAQ)” is a supply type question
of 5 marks which required a typical answer of about 15-20 lines
in bout 08-10 minutes.
4. Figures to the right indicate marks allotted to the questions.
5. Assume suitable data if necessary
6. Use a nonprogrammable type of scientific calculator is
allowed
Marks
SECTION-A
Q.1 Compare the RC coupling, transformer coupling and direct
coupling.
15
OR
Q.1 Draw the frequency response of RC coupled amplifier with their
application.
15
Q.2 Explain the in detail “Bootstrapping principle”. Why it is needed?
Explain their function.
OR
15
Q.2 What is the necessity of Darlington connection? Explain the bias
problem associated with it. How it is overcome?
15
Q.3 Define
A) DC load line
B) Q point.
5
Q.4 List the advantages of voltage divider bias.
5
SECTION-B
Q.5 Why power amplifier is called as large signal amplifier? Explain in
briefly
15
OR
Q.5 Define the performance parameters of power amplifier.
(1) Circuit efficiency
(2) Distortion
(3) Power dissipation capability
(4) Power gain.
15
Q.6 Draw a circuit diagram of R-C coupled cascade amplifier and
obtain the expression for voltage & current gain.
15
OR
Q.6 Draw Transformer coupled (two stage) amplifier with its frequency
response.
15
Q.7 Why does the cascading of stages increase the gain-bandwidth
product of an amplifier?
5
Q.8 Define
1) voltage gain
2) Current gain.
5
Computer Generated Random Question Paper dated: 16-07-2015 16:29:29
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