BASIC ELECTRONICS 2nd SEM
EXAM/ECE/CSE/IT/EEE/0664/Dec 2018
Basic Electronics Diploma Paper EEE/ECE/CSE/Dec 2018Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
                  SECTION-A
Q1. Do as directed.                                                   15×1=15
   1.The value of knee voltage of a Germanium diode is 0.3 Volt.
   2.The electrons in the outermost orbit are called Valence Electron.Â
   3. Holes are Majority carriers in the p-type
   4.MOSFET is a Voltage Controlled Device
   5.A Zener diode is always operated in Zener Breakdown Region.
   6.When pn junction is heavily doped, its breakdown voltage will Decrease.
   7.FET is Uni Polar Device
   8.The smaller the stability factor, the Higher will be the thermal stability of        the Circuit ?
   9.If the arrow points outward, the transistor is an NPN Transister.
  10.The best biasing method is achieved by adopting Voltage Divider Biasing.
  11.BJT stands for Bipolar Junction Transister .Â
  12.CMOS stands for Complementary Metal Oxide Semiconductor.Â
  13.Current amplification factor of CB is Ic/Ie .
  14.The meaning of hybrid is Intermixing of Two or More Parameter .
  15.Output signal frequency of full wave rectifier is Double of input signal .
           SECTION-B
Q2. Attempt any five questions.                         5×6=30
    1.Explain the need for Stabilization of the Operating Points ?
   2.Discuss the advantages of FET over Conventional Transister.
   3.Explain the effect of temperature on conductivity of intrinsic Semiconductor.
   4.Write a note on tunnel Diode ?
   5.Draw Circuit of Half Wave Rectifier and Explain its working. Draw the           output Waveform ?
  6.What do you mean by thermal runaway?
  7.Draw and explain Filter Circuits ?
  8.What is Zener Diode? Explain its Applications ?
            SECTION-C
Q3. Attempt any three questions.                              3×10=30
  1.Draw and Explain the Common Emitter Configurations of a Transister ?
  2.Explain construction and working principle of FET. Draw the neat diagram ?
  3.Write note on PN Junction and its biasing. Difference between the n-type and     p-type semiconductor.
  4.Explain in Detail Different Types of Biasing ?
  5.Write short notes on the following. (any two)
     1. LED
     II.Avalanche breakdown
     III.Schottky Diode
BASIC ELectronics be DEC 2018 DIPLOMA PAPER SOLUTION
Section a FILL IN THE BLANKS basic electronics be dec 218 paper
Which Impurity is added to Pure Semiconductor to Form N-type semiconductors
What is The Efficiency of Half Wave Rectifier
Which Transformer used in Full Wave Rectifier
Filter circuits are used to reduce
The value of knee voltage for silicon diode is
Knee Voltage of Silicon diode is 0.7V
Zener diode is made to operate in _______ Region
Zener Breakdown Region
In BJT, leakage current mainly depends on ___________.
Temperature.
AC load line of a transistor is steeper than its D.C. load line. (T/F)
True
The Best Biasing Method is achieved by adopting _______________________.
Potential Divider or Voltage Divider Biasing.
JFET stands for ______________________________.
Junction Field Effect Transistor
MOSFET is a _____________________ Controlled device
Voltage Controlled device.
The emitter and collector regions of BJT is ___________ Doped and _____________ Doped
Emitter is Highly Doped and Collector is Moderate Doped.
Free Electrons Exists in _____________ Band.
Valence Band
Saturation Region
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Section B : Basic electronics dec 2018 PAPER
Explain Intrinsic and Extrinsic Semiconductor with Suitable Diagram ?
Intrinsic and Extrinsic Semiconductor 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
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BASIC ELECTRONICS DIPLOMA DEC 2018 PAPER
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Section c solved basic electronics dec 2018 paper
Explain conductors, insulators and semiconductors on the Basis of their Energy Band Theory ?
Explain Construction Working of Full Wave Bridge Rectifier ?
Full Wave Bridge Rectifier Click Here
Explain PN Junction and draw the V-I characteristics of PN Junction ?
Input and Output Characteristics of CE configuration of a Transistor ?
CE configuration of a Transistor Click Here
Write Short Note on Light Emitting Diode ?
Light Emitting Diode
Define Drift and Diffusion current
Drift and Diffusion current