About this previous year paper
This question paper for Emerging Domain in Electronics Engineering (KEC101T) is divided into three sections — A, B, and C, covering fundamental and advanced concepts of electronics. Students must attempt all sections.
SECTION A — Very Short Answer Questions (20 Marks)
This section contains 10 compulsory questions, each carrying 2 marks.
Topics include:
BJT parameters (α, β)
Transconductance of JFET
CMRR in op-amps
Number system conversions
Avalanche vs. Zener breakdown
Basic Boolean reduction
Microprocessor vs. Microcontroller
Doping
RADAR and its applications
This section tests basic understanding and conceptual clarity.
SECTION B — Short Answer Questions (30 Marks)
Students must attempt any three out of five questions.
Each question carries 10 marks, covering:
Clippers and waveform analysis
Structure & operation of Depletion-type NMOS
Subtraction using complements
AM modulation & demodulation
Ideal OP-AMP characteristics and non-inverting gain derivation
This section checks analytical ability and diagram-based explanations.
SECTION C — Long Answer Questions (50 Marks)
Students must attempt one question from each of the five long-answer units. Each question carries 10 marks.
Topics include:
Voltage multipliers
Zener diode VI-curve & load analysis
NPN transistor (CE mode) with characteristics
α–β relationship + numerical
OP-AMP integrator/differentiator
Communication system elements
CMRR numerical & OP-AMP output
Satellite communication
Clamper circuits
AM modulation numericals
K-map minimization (NOR realization)
Multi-variable K-map simplification
This section tests deep understanding, numerical solving, and circuit analysis.
This exam paper for Emerging Domain in Electronics Engineering (KEC101T) consists of three sections that test a student’s knowledge of semiconductors, diodes, transistors, FETs, op-amps, number systems, Boolean algebra, communication systems, and modulation techniques. Section A includes short conceptual questions, Section B focuses on circuit-based short answers and numerical problems, while Section C contains long descriptive and analytical questions on advanced electronic devices, OP-AMP applications, communication systems, AM/ FM modulation, and digital logic simplification. The paper evaluates both theoretical understanding and problem-solving skills.