August V55/V63/T14031/T04031/EE/20150817 2015

```August
V55/V63/T14031/T04031/EE/20150817
2015
Basic Electronics
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 With neat sketch explain the working of
1) Centre tap full wave rectifier.
2) Full wave bridge rectifier.(with waveform).
15
OR
Q.1 Comparison between Half wave, full wave &amp; bridge rectifier on the
basis of no of diode, TUF, Efficiency, Ripple factor ,output
frequency, PIV
15
Q.2 What is clamper? Name their types? Explain the construction and
working of biased clamper with waveform.
15
OR
Q.2 Draw experimental set up for CB with VI characteristics .state the
features of CB Configuration
15
Q.3 Draw the neat circuit diagram of CLC filter With input &amp; output
waveform.
5
Q.4 Why photo diodes are operated in reverse bias mode?
5
SECTION-B
Q.5 Analysis of voltage divider bias using Thevenin’s Theorem.
With their application.
15
OR
Q.5 Draw &amp; explain the neat circuit diagram which uses collector
feedback biasing technique for NPN transistor.
15
Q.6 Explain the construction of P channel JFET with the help of circuit
diagram .List the advantages of JFET?
15
OR
Q.6 Draw &amp; explain the structure of P channel depletion type MOSFET.
15
Q.7 Justify the current gain in common base configuration is less than
and nearly equal to one.
5
Q.8 Compare BJT &amp; FET.
5
Computer Generated Random Question Paper dated: 06-07-2015 11:55:05
***BEST OF LUCK***
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