Electronics Engineering (BOE409) - AKTU Question Paper 2024-25
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 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.
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Questions Asked in 2024-25
Electronics Engineering (BOE409) — complete question paper · 70 marks · 3 Hours
- aEnlist properties of semiconductor materials
- bWhat is the static and dynamic resistance inPN-junction diode?
- cExplain the principle of operation of LED
- dDraw the voltage doubler circuit and explain
- eExplain parameters of JFET
- fExplain characteristics of an ideal Operational amplifier
- gHow do you check for continuity using a digital multimeter
- aExplain action of PN junction diode under forward bias and reverse bias condition
- bDraw the circuit of full wave bridge rectifier and explain its working. What is PIV of bridge rectifier?
- cExplain construction, working and transfer characteristic of n -channel EMOSFET
- dWith suitable circuit diagram obtain the expression for integrator and differentiator OPAMP
- eDescribe the operation of CRT with neat block diagram. How unknown frequency and voltage is measured using CRO?
- aDescribe transition and diffusion capacitance of PN junction diode. Derive suitable expressions
- bDifferentiate between Zener breakdown and Avalanche breakdown mechanism
- aExplain Zener diode as shunt regulator. A Zener regulator has input dc supply of 25V, a series resistance of 470Ω, a Zener voltage of 15V and a load resistance of 1KΩ.What are the load voltage and load current
- bExplain principle of operation and construction of Tunnel diode. Explain its V -I characteristics
- aDetermine the dc level of IB and Vc for the network shown in figure below
- bExplain working of common-source (CS) N-channel JFET amplifier. Draw its ac equivalent and find expressions for Av, Rin,Ro. (Assume necessary parameters)
- aCalculate range of output voltage developed in the circuit of shown in figure below
- bExplain Op -Amp parameters input offset voltage, output offset voltage, input biased current, input offset current differential and common-mode operation
- aDraw and explain the block diagram of Ramp type digital voltmeter. Explain related voltage to time conversion waveforms
- bDescribe pros and cons of using a digital storage oscilloscope over an analog oscilloscope
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.
Repeated Questions — BOE409
Questions that appeared in more than one session, found by comparing 3 years of Electronics Engineering papers (2023-24, 2024-25, 2025-26)
Explain the principle of operation of LED
Appeared in: 2023-24 · 2024-25
Explain construction, working and transfer characteristic of n -channel EMOSFET
Appeared in: 2023-24 · 2024-25
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