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) — complete question paper · 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. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.