B.TechSemester 32023-24Electronics EngineeringBOE309

Electronics Engineering (BOE309) - AKTU Question Paper 2023-24

B.Tech · Semester 3 · Free PDF Download

This is the official AKTU Electronics Engineering Previous Year Question Paper for B.Tech Semester 3, 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 3

Session:2023-24

University:AKTU / UPTU

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Questions Asked in 2023-24

Electronics Engineering (BOE309) — complete question paper · 70 marks · 3 Hours

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 7 = 14

a
Define diode resistance and diode capacitance. 2 1
b
Define the depletion layer in a PN junction diode. 2 1
c
Explain how clippers and clampers work. 2 2
d
Explain the concept of DC biasing in BJTs. 2 3
e
Differentiate between JFETs and MOSFETs. 2 3
f
What is the purpose of a summing amplifier? 2 4
g
What is the purpose of a digital voltmeter (DVM)? 2 5

Section BAttempt any three o f t h e f o l l o w i n g : 7 x 3 = 21

a
Explain the concept of semicondu ctor materials and their role i n the formation of PN junction diodes. Discuss the properties of sili con and germanium in this context
b
Explain the principles of full-wave rectification using diodes. 7 2
c
Explain the emitter-follower configuration of a BJT transistor, discussing its characteristics, applications, and advantages
d
Discuss differential amplifier circuits and their applications in amplification and signal processing
e
Discuss the principles of opera tion of a digital voltmeter (DVM ) using ramp technique

Section CAttempt any one p a r t o f t h e f o l l o w i n g : 7 x 1 = 7

a
Explain the breakdown mechanisms in Zener diodes, distinguishin g between Zener breakdown and avalanche breakdown
b
Explain the working and V-I characteristic of p-n junction diode. 7 1
a
Explain voltage multiplier circuits and their applications in g enerating high-voltage DC from low-voltage A C sources. Discuss different types of voltage multipliers and their characteristics
b
Differentiate between clipper and clamper circuits. Determin e VL, IL, IZ and IR for the following circuit
a
Describe the construction and characteristics of Junction Field Effect Transistors (JFETs)
b
Explain the operation and characteristics of depletion type Met al-Oxide- Semiconductor Field Effect Transistors (MOSFETs
a
Define Op-Amp parameters such as input offset voltage, output o ffset voltage, input biased current, and input offset current
b
Calculate the output voltage Vo of the circuit shown in fig
a
Explain the operation and features of digital multimeters (DMMs) 7 5
b
Explain how to measure voltage, current, phase, and frequency using a Cathode Ray Oscilloscope (CRO)

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.

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