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Electronics-1 Dec 2015 3rd Sem Electrical Engineering Diploma Paper

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Electronics-1 Dec 2015 3RD Sem Electrical Engineering Diploma Paper

                                    SECTION-A

Q1. Fill in the blanks.                                                      10×1.5=15

(i) The electrons in the outermost orbit are called __________ electrons.
(ii) The term eV stands for ____________
(iii) In p-type semiconductor, the minority carriers are _______________
(iv) Resistivity of semiconductors lies ____________ conductors and insulators.
(v) The value of knee voltage for silicon diode is _________ volt.
(vi) A capacitor circuit does not allow to pass _____________ component.
(vii) The three terminals of transistor are ________ , base and __________.
(viii) The value of α is always ___________ than one.
(ix) Faithful amplification means increase in amplitude of signal without any change in its _________
(x) A single stage amplifier contains __________ transistor.
(xi) When the Q-point changes the h-parameters of the transistor ____________
(xii) For power amplification mostly ________________ coupling is used.
(xiii) The final stage of a multistage amplifier uses _____________ coupling.
(xiv) A MOSFET has ________ terminals.
(xv) Internal resistance of ideal voltage source is ______________ .

                                  SECTION-B

Q2. Attempt any SIX questions.                                                                    6×5=30

i. Define electronics. How electronics is used in various applications in our daily life?
ii. What is the difference between voltage source and current source?
iii. Explain the concept of doping.
iv. What is the need of filter circuit? Explain shunt capacitor filter with the help of diagram.
v. Explain the working of NPN transistor with the help of diagram.
vi. What is faithful amplification? What are the conditions required to achieve the faithful amplification?
vii. Name various couplings used in multi stage amplifier. What is the need of coupling networks?
viii. Explain the difference between JFET and ordinary transistor (BJT).

                                   SECTION-C

Q3. Attempt any three questions.                                                      3×10=30

(i) Draw the practical circuit of a single stage transistor amplifier and state the function of each component used in this circuit.
(ii) What are the various methods of biasing a transistor? Draw and explain the circuit diagram of base resistor biasing circuit.
(iii) Draw the circuit diagram, for a power supply using bridge rectifier and a n-filter. Explain working of bridge rectifier.
(iv) On the basis of conductivity, classify the solids. Explain their behaviour on the basis of energy band phenomenon.

Electronics-1 Dec 2015 3RD Sem Electrical Engineering Solved PSBTE Diploma Paper

                                    SECTION-A

Q1. Fill in the blanks.                                                      10×1.5=15

(i) The electrons in the outermost orbit are called Free or Valence electrons.
(ii) The term eV stands for electron Volt .
(iii) In p-type semiconductor, the minority carriers are Electrons .
(iv) Resistivity of semiconductors lies conductors and insulators.
(v) The value of knee voltage for silicon diode is 0.7 volt.
(vi) A capacitor circuit does not allow to pass dc component.
(vii) The three terminals of transistor are Emitter , base and Collector.
(viii) The value of α is always Less than one.
(ix) Faithful amplification means increase in amplitude of signal without any change in its Original Shape of Input Signal .
(x) A single stage amplifier contains One transistor.
(xi) When the Q-point changes the h-parameters of the transistor ____________
(xii) For power amplification mostly Transformer coupling is used.
(xiii) The final stage of a multistage amplifier uses Transformer coupling.
(xiv) A MOSFET has Three terminals.
(xv) Internal resistance of ideal voltage source is Zero .

The electrons in the outermost orbit are called Free or Valence electrons.

The term eV stands for electron Volt .

In p-type semiconductor, the minority carriers are Electrons .
 

Resistivity of semiconductors lies conductors and insulators.

The value of knee voltage for silicon diode is 0.7 volt.

A capacitor circuit does not allow to pass dc component.

The three terminals of transistor are Emitter  , base and Collector.

The value of α is always Less than one.

Faithful amplification means increase in amplitude of signal without any change in its Original Shape of Input Signal .
 

A single stage amplifier contains One transistor.

When the Q-point changes the h-parameters of the transistor ____________

For power amplification mostly Transformer coupling is used.
 

The final stage of a multistage amplifier uses Transformer coupling.
 

A MOSFET has Three terminals.

Internal resistance of ideal voltage source is Zero .

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Electronics-1 Dec 2015 3RD Sem Electrical Engineering Diploma Paper Click Here

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Symbol and multiplying factor of the following prefixes:
i) kilo ii)milli iii) mega iv)micro v) giga vi) tera

V-I characteristics of pn junction and zener diode.

Faithful amplification

conditions to be fulfilled to achieve faithful amplification in a transistor.

Difference between JFET and ordinary transistor (BJT).

Electronics-1 May 2019 3RD Sem Electrical Engineering Diploma Solved Paper Click Here

Electronics-1 DEC 2015 3RD Sem Electrical Engineer ing Diploma Paper

Electronics-1 May 2019 3RD Sem Electrical Engineering Diploma Solved Paper Contact Us
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