B.TechSemester 42023-24Electronics EngineeringBOE409

Electronics Engineering (BOE409) - AKTU Question Paper 2023-24

B.Tech · Semester 4 · Free PDF Download

This is the official AKTU Electronics Engineering Previous Year Question Paper for B.Tech Semester 4, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 4

Session:2023-24

University:AKTU / UPTU

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Questions Asked in 2023-24

Electronics Engineering (BOE409) — extracted question text · 70 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 7 = 14

a
Define the concept of a PN junction and its formation
b
What is diode capacitance?
c
Explain the concept of voltage multiplier circuits
d
Define the operating point (Q-point) of a BJT
e
How does common -mode rejection ratio (CMRR) affect Op -Amp performance?
f
Define input offset voltage in Op-Amps
g
Describe the basic principles of operation of an Oscilloscope

Section BAttempt any three of the following: 7 x 3 = 21

a
Explain the formation of a PN junction in a semiconductor diode. Define diode resistance. How does it vary with biasing conditions?
b
Explain the principle of operation of voltage multiplier circuits
c
Explain the emitter-bias configuration of BJT
d
Draw and explain the block diagram of an Op-Amp. Design an inverting amplifier using op-amp with a gain of -5 and input resistance of 10 kΩ
e
Describe the RAMP technique used in Digital Multimeters (DMMs) for voltage measurement

Section CAttempt any one part of the following: 7 x 1 = 7

a
Describe the breakdown mechanism of Zener diodes
b
How can a Zener diode be used as a voltage regulator in a circuit? Provide a schematic diagram and explain its operation. For the given Zener diode network shown in figure determine VL, VR ,IL ,IR
a
Explain the operation and characteristics of LEDs. Discuss the applications of LEDs in lighting and display technologies
b
Discuss the operation and applications of LCDs in electronic displays
a
Describe the construction and workings of N channel (JFET)
b
Explain the construction and characteristics of Enhancement -mode MOSFET
a
Explain the circuit diagram of a summing amplifier using an Op -Amp and Derive the expression for the output voltage
b
Explain the circuit diagram and operation of a differentiator circuit using an Op-Amp
a
Explain how voltage, current, phase, and frequency are measured using
a
Cathode Ray Oscilloscope (CRO)
b
Explain the working principle of a Digital Voltmeter (DVM). Compare the advantages of DVMs over analog voltmeters

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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