Electronics-1 Dec 2017 3rd Sem Electrical Engineering Diploma Paper

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Electronics-1 Dec 2017 3RD Sem Electrical Engineering Diploma Paper

SECTION-A

Q1. Fill in the blanks. 10×1.5=15

a. The input impedance of a FET is ___ than that of BJT.
b. ICEO = + ICBO.
c. The process of adding impurities is called _.
d. The turn on voltage in a silicon diode is ____ .
e. A zener diode is always operated in _ region.
f. Holes are _ carriers in N-type semiconductors.
g. When the gate terminal of MOSFET is positive it is said to operate in _ .
h. The unit of hie is .
i. In a transistor there are PN junctions.
j. The point of intersection of dc and ac load line is called _______ .

SECTION-B

Q2. Attempt any SIX questions. 6×5=30

i. What is ripple factor? How it can be minimized.
ii. Explain zener diode as a voltage regulator.
iii. Explain intrinsic and extrinsic semiconductors.
iv. Give construction and working of MOSFET.
v. Explain the working of half wave rectifier.
vi. Draw the circuit diagram of CE amplifier. Explain briefly.
vii. What do you mean by h parameters of a transistor? Explain briefly.

SECTION-C

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

a. Explain construction of NPN transistor. Explain how it can be used as amplifier.
b. Explain the working of two stages RC Couples Amplifier with diagrams.
c. Write a short note on–
i. Filter circuits
ii. Avalanche breakdown
d. Compare between FET, JFET and MOSFET.
e. With the help of a diagram, explain the working of a bridge rectifier

Electronics-1 Dec 2017 3RD Sem Electrical Engineering Solved PSBTE Diploma Paper

SECTION-A

Q1. Fill in the blanks. 10×1.5=15

a. The input impedance of a FET is Higher than that of BJT.
b. ICEO = + ICBO.
c. The process of adding impurities is called Doping .
d. The turn on voltage in a silicon diode is 0.7 Volt .
e. A zener diode is always operated in Breakdown region.
f. Holes are Minority carriers in N-type semiconductors.
g. When the gate terminal of MOSFET is positive it is said to operate in _______ .
h. The unit of hie is Input Impedance .
i. In a transistor there are Two PN junctions.
j. The point of intersection of dc and ac load line is called Q-Point .

Electronics-1 May 2019 3RD Sem Electrical Engineer ing Diploma Paper

Section a Electronics-1 dec 2017 3RD Sem Electrical Engineering Diploma Paper

The input impedance of a FET is ___________ than that of BJT.

The input impedance of a FET is Higher than that of BJT.

ICEO =______ + ICBO.

ICEO =______ + ICBO.

The process of adding impurities is called __________

The process of adding impurities is called Doping .

The turn on voltage in a silicon diode is __________

The turn on voltage in a silicon diode is 0.7 Volt .

A zener diode is always operated in ___________ region.

A zener diode is always operated in Breakdown region.

Holes are ___________ carriers in N-type semiconductors.

Holes are Minority carriers in N-type semiconductors.

When the gate terminal of MOSFET is positive it is said to operate in _____________ .

When the gate terminal of MOSFET is positive it is said to operate in _____________ .

The unit of hie is ____________

The unit of hie is Input Impedance .

In a transistor there are _________ PN junctions.

In a transistor there are Two PN junctions.

The point of intersection of dc and ac load line is called ____________

The point of intersection of dc and ac load line is called Q-Point .

Electronics-1 dec 2017 3RD Sem Electrical Engineering Diploma Paper Click Here

Section B :Electronics-1 dec 2017 3RD Sem Electrical Engineering Diploma Paper

What is ripple factor? How it can be minimized.

Ripple factor

Explain zener diode as a voltage regulator.

Zener diode as a voltage regulator.

Explain intrinsic and extrinsic semiconductors.

Intrinsic and extrinsic semiconductors.

Give construction and working of MOSFET.

Construction and working of MOSFET.

Explain the working of half wave rectifier.

Working of half wave rectifier.

Draw the circuit diagram of CE amplifier. Explain briefly.

Circuit diagram of CE amplifier.

What do you mean by h parameters of a transistor? Explain briefly.

h parameters of a transistor.

Explain the difference between JFET and ordinary transistor (BJT).

Difference between JFET and ordinary transistor (BJT).

Electronics-1 DEC 2017 3RD Sem Electrical Engineering Diploma Solved Paper Click Here

Electronics-1 DEC 2017 3RD Sem Electrical Engineer ing Diploma Paper

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Section c :-Electronics-1 DEC 2017 3RD Sem Electrical Engineering Diploma Paper

Explain construction of NPN transistor. Explain how it can be used as amplifier.

Construction of NPN transistor.

Transistor as amplifier.

Explain the working of two stages RC Couples Amplifier with diagrams

Working of two stages RC Couples Amplifier.

Write a short note on Filter circuits

Filter circuits

Write a short note on Avalanche breakdown

Avalanche breakdown

Compare between FET, JFET and MOSFET.

Compare between FET, JFET and MOSFET.

With the help of a diagram, explain the working of a bridge rectifier

Explain the working of a bridge rectifier

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