B.TechSemester 22024-25Fundamentals Of Electronics EngineeringBEC201

Fundamentals Of Electronics Engineering (BEC201) - AKTU Question Paper 2024-25

B.Tech · Semester 2 · Free PDF Download

This is the official AKTU Fundamentals Of Electronics Engineering Previous Year Question Paper for B.Tech Semester 2, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 2
Session:2024-25
University:AKTU / UPTU

Rate this paper

Questions Asked in 2024-25

Fundamentals Of Electronics Engineering (BEC201) — complete question paper · 70 marks · 3 Hours

Section AAttempt all questions in brief. 02 x 7 = 14
  • a
    Compare Avalanche and Zener breakdown
  • b
    What is the physical significance of the pinch -off voltage in a JFET, and how does it affect drain current?
  • c
    Why is a differential amplifier configuration preferred as the input stage of an op-amp?
  • d
    What do you mean by CMRR and Why is the Common -Mode Rejection Ratio (CMRR) critical in instrumentation applications using Op-Amps?
  • e
    Why is NAND gate called a 'universal gate'? Realize NOT gate using NAND gate only
  • f
    Find 1’s and 2’s complement of 10011010
  • g
    In digital wireless systems, ho w does frequency reuse improve spectral efficiency?
Section BAttempt any three of the following: 07 x 3 = 21
  • a
    Explain the formation of a PN junction and derive the expression for the width of the depletion region. Discuss how biasing affects the junction width
  • b
    Explain the construction and working of a BJT. Draw the input and output characteristics of Common Emitter configuration
  • c
    Draw and explain the Op -Amp IC-741. Also draw equivalent circuit of Op-Amp
  • d
    Distinguish between POS & SOP. Convert the given expression in standard SOP form
  • e
    Draw the block diagram of a communication system and explain the function of each block
Section CAttempt any one part of the following: 07 x 1 = 07
  • a
    Compare and analyze the operation and w aveforms of half-wave and full- wave rectifiers. Include derivations for average and RMS current
  • b
    A full -wave bridge rectifier is supplied with 220V AC, 50Hz. It uses a transformer with turns ratio 10:1 and a filter capacitor of 470 μF. Calculate: • Peak output voltage • Average DC output voltage • Ripple voltage for a load of 1 kΩ
  • a
    Discuss the working of JFET and also discuss input and output characteristics of JFET
  • b
    Drive the relation between Calculate IC and IE for a transistor that and I C =100 . Determine the value of for the transistor
  • a
    Explain the working of integrator and differentiator Op -Amp circuits. Include waveform examples and applications
  • b
    Design and explain the working of an inverting and non -inverting amplifier. Also derive the gain expressions
  • a
    Minimize the four variable logic function using k-map
  • b
    Prove the following using the Boolean algebraic theorems (iii)AB+ (iii)AB+
  • a
    What is need of modulation? Define AM (Amplitude modulation) with wave forms and derive expiration for modulation index of AM
  • b
    Explain basic elements of Satellite communication system with help of suitable diagrams

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.