B.TechSemester 12022-23Fundamentals Of Electronics EngineeringBEC-101

Fundamentals Of Electronics Engineering (BEC-101) - AKTU Question Paper 2022-23

B.Tech · Semester 1 · Free PDF Download

This is the official AKTU Fundamentals Of Electronics Engineering Previous Year Question Paper for B.Tech Semester 1, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 1

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Fundamentals Of Electronics Engineering (BEC-101) — complete question paper

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

a
Compare between Avalanche breakdown and Zener breakdown
b
Why Varactor diode is also called Varicap? Explain
c
Define Pinch-off voltage for JFET
d
For a transistor IE = 10 mA and α = 0.987. Find IC and IB dhft,A
e
Define CMRR and Slew rate of Op-Amp
f
Explain Voltage Follower circuit using Op-Amp
g
500 watt carrier power is modulated to depth of 90%, calculate the total power in the modulated wave

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

a
Explain the working of p-n junction diode and draw its V-I Characteristics. ls iznf”kZr dhft,A
b
Draw a neat circuit diagram of bridge rectifier and explain its operation with output waveforms. Drive the average value of current and voltage
c
Calculate the output voltage Vo of the circuit shown in fig 1. Fig No 1
d
Define Universal Gates. Implement AND, OR, NOR by using NAND gates only
e
An audio frequency signal 20 Sin 2 π x 500 t is used to amplitude modulated a carrier of 40 Sin 2 π x 105 t. Calculate : (i) Modulation Index (ii) Sideband Frequency (iii) Amplitude of each sideband (iv) Bandwidth required (v) Total power delivered to the load of 2 KΩ

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

a
(i) Draw the circuit diagram of voltage tripler circuit? (ii) Explain Zener diode as a voltage regulator
b
Explain the working of following with the help of suitable diagram. (i) LED (ii) Photodiodes
a
Draw the circuit of NPN transistor in common base configuration and discuss its working. Draw input-output characteristic
b
Explain working principle of Depletion type MOSFET (n-channel). Draw & Explain its characteristics
a
Draw the block diagram of Op-Amp and list all the ideal characteristics of op- amp
b
Explain the working of op-amp as a Integrator and drive its output equation
a
Minimize using K-map and realize output using gates
b
Convert the following: ii) Find the base x if (211)x = (152)8 iii) Subtract using 1’s complement: (10111)2 – (110011)2 iv) find the 1’s and 2’s compliment of (010100)2
a
(i) Describe AM modulator with adequate diagram. (ii) Explain the elements of communication system with the help of block diagram
b
Explain the satellite and radar system using proper block diagram

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 — BEC-101

Questions that appeared in more than one session, found by comparing 4 years of Fundamentals Of Electronics Engineering papers (2022-23, 2023-24, 2024-25, 2025-26)

500 watt carrier power is modulated to depth of 90%, calculate the total power in the modulated wave

Appeared in: 2022-23 · 2024-25

Draw a neat circuit diagram of bridge rectifier and explain its operation with output waveforms. Drive the average value of current and voltage

Appeared in: 2022-23 · 2025-26

Calculate the output voltage Vo of the circuit shown in fig 1. Fig No 1

Appeared in: 2022-23 · 2024-25

Explain the working of op-amp as a Integrator and drive its output equation

Appeared in: 2022-23 · 2024-25