B.TechSemester 32021-22Electronics EngineeringKOE-038
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Electronics Engineering (KOE-038) - AKTU Question Paper 2021-22

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 2021-22. 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:2021-22
University:AKTU / UPTU

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Questions Asked in 2021-22

Electronics Engineering (KOE-038) — complete question paper

Section AAttempt all q u e s t i o n s i n b r i e f . 2 x 10 = 20
  • a
    What you mean by Doping. Describe its need. 2 C O - 1
  • b
    Why Si is preferred as compare d to Ge in Semiconductor Electronics. 2 CO-1
  • c
    Differentiate between Clipper and Clamper circuit. 2 CO-2
  • d
    Compare LED and photo diode. 2 CO-2
  • e
    State two Difference between BJT and FET. 2 CO-3
  • f
    Define Threshold Voltage for an E-MOSFET. Also define I DSS for an JFET
  • g
    What is unity gain amplifier(buffer)? 2 CO-4
  • h
    What is SLEW RATE expl ain briefly? 2 CO-4 i. Compare analog and digital instruments. 2 CO-5 j. Write the applications of CRO. 2 CO-5
Section BAttempt any three o f t h e f o l l o w i n g :
  • a
    Explain Avalanche and Zener Breakdown Mechanism. 10 CO-1
  • b
    Write a short note on Tunnel and Varactor Diode. 10 CO-2
  • c
    Draw the basic structure of C ommon Base BJT and explain its principle of operation with neat diagram with its input and output characteristics
  • d
    Define Op-Amp with the help of block diagram. List the ideal characteristic of an Op-Amp. Explain working of Op-Amp as a Adder
  • e
    Draw and explain the block diagram of Digital Storage Oscill oscope (DSO) also compare it with analog oscilloscope
Section CAttempt any one p a r t o f t h e f o l l o w i n g :
  • a
    Draw the V-I characteristics of an ideal & practical diode a nd explain. Also write the diode equation in support of your answer
  • b
    What do you mean by diode resis tances? Draw and explain the characteristics of transition and diffusion capacitance v/s app lied voltage
  • a
    Determine I Z, IL, IR and VL for the network shown in given fig
  • b
    Determine the output waveform for a given input waveform
  • a
    Distinguish between enhancement type and depletion type MOSF ETs. Draw the cross-section of N-channel enhancement MOSFET. Explain and draw the transfer characteristics
  • b
    Describe the construction of a NPN transistor. Define α and β with respect to BJT and derive the relationship between them
  • a
    Explain the concept of Virtual ground. Explain working of Op-Amp as
  • b
    Determine the output of following Circuits
  • a
    Describe measurement of Vo ltage, Frequency & Phase using CRO. 10 CO-1
  • b
    Describe the working of Digital Multimeter with their block diagram. 10 CO-1

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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