BASIC ELECTRONICS 2nd Semester Exam
ECE/CSE/IT/MECHATRONIC/0190/May’17
 Basic Electronics PSBTE Diploma Solved Paper May 2017                        SECTION-A
Q1. Do as directed.                                                           15×1=15
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N-type semiconductors are formed by adding Pentavalent impurity to a pure Semiconductor.
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In Intrinsic semiconductors number of electrons are Equal to number of Protons.
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Conduction in P-type semiconductor is due to movement of Holes . Â
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The value of knee voltage for silicon diode is 0.7 V
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A Photodiode is optimized for its sensitivity toÂ
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Zener diode is made to operate in Zener Breakdown Region.
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A transistor contains Two PN Junction .
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The emitter of a transistor is Highly doped.Â
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The value of collector current of a transistor is Always Less than to emitter Current.
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In transistor, leakage current mainly depends on Temperature.
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The ideal value of stability factor is 1 .
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The gain stability of an amplifier circuit can be improved by using Negative Feedback .
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For a transistor to work as an amplifier, its operating point should lie in Active Region.
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FET is a Three terminal semiconductor.
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MOSFET stands for Metal Oxide Filed Effect Transister .
       SECTION-B
Q2. Attempt any five questions.                                  5×6=30
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How N-type semiconductor is formed?
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What are intrinsic and extrinsic semiconductors?
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Write a note on PN Junction ?
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What is Zener diode? Draw its symbol and explain its Working ?
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What is Transistor? Draw and explain PNP
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Differentiate between FET and
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What do you mean by thermal runaway?
   SECTION-C
Q3. Attempt any three questions.                            3×10=30
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What are needs of filter? Explain π (Pi) filter in detail.
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Derive an expression for amplification factor (β) of common emitter configuration.
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Explain the divider method of biasing for transistor (CE).
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What is CMOS? Explain its advantages and application.
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Explain the concept of bipolar transistor and draw symbol of NPN and PNP transistors.
BASIC ELectronics be may 2018 DIPLOMA PAPER SOLUTION
Section a FILL IN THE BLANKS be paper
N-type semiconductors are formed by adding ______ Impurity to a Pure Semiconductor
Pentavalent Impurity
In Intrinsic semiconductors number of electrons are to number of
Conduction in P-type semiconductor is due to movement of _____.
Holes
Value of knee voltage for silicon diode is ____.
0.7 V
A Photodiode is optimized for its sensitivity to
Zener diode is made to operate in _____ Region
Zener Breakdown Region
A transistor contains______PN Junction
Two
The gain stability of an amplifier circuit can be improved by using ____.
Negative Feedback
The value of collector current of a transistor is ____ to emitter Current.
Always Less than
In transistor, leakage current mainly depends on _______.
Temperature
The ideal value of stability factor is ____.
one
FET is a _____ terminal semiconductor
Three
Metal Oxide Filed Effect Transister
Saturation Region
Basic Electronics PSBTE Diploma Solved Paper May 2017.Download Previous Year Basic Electronics 2nd Sem Semester ECE ,CSE Question Paper Solution Click Here
Section B : BE PAPER MAY 2018 PAPER
Explain Intrinsic and Extrinsic Semiconductor with Suitable Diagram ?
Intrinsic and Extrinsic Semi-conductor Click Here.
What is Zener diode? Draw its symbol and explain its characteristics.
What is Zener diode? Draw its symbol and characteristicsÂ
Explain the Working of Half Wave Rectifier
Working of Half wave Rectifier click here
Explain the working of NPN Transistor ?
Working of NPN Transistor Click Here
Difference Between FET and BJT ?
h-Parameters (hybrid Parameter) of transistors ?
hybrid Parameter) of transistor
In what way the temperature variations affect the operating point of a transistor?
Temperature variations affect the operating point of a transistorÂ
Explain the Phase reversal of output voltage with respect to input voltage in an Amplifier ?
Phase reversal of output voltage with respect to input voltage in an AmplifierÂ
Basic Electronics PSBTE Diploma Solved Paper May 2017 Solution Click Here
BASIC ELECTRONICS DIPLOMA MAY 2018 PAPER
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Section c solved bee paper
Needs of filter ? Explain π (Pi) filter
Need of Filter  Pi Filter Click Here
Derive an expression for amplification factor (β) of common emitter configuration ?
Full Wave common emitter configuration
Explain the divider method of biasing for transistor (CE)
Input and Output Characteristics of CE configuration of a Transistor ?
CE configuration of a Transistor Click Here
Concept of CMOS,Advantages and Application ?
Concept of Bipolar Transistor Symbol of BJT