(SEM VIII) THEORY EXAMINATION 2018-19 ELECTRICAL ELECTRONICS ENGINEERING MATERIALS

ELECTRICAL & ELECTRONICS ENGINEERING MATERIALS (NEE-801)

Based on the uploaded question paper 
 

, here are simple and clear descriptions of A, B, and C Sections:

SECTION A – Short Answer Type (2 × 10 = 20 Marks)

Description:
This section contains 10 compulsory short questions. Each question carries 2 marks and requires brief answers, definitions, formulas, or small diagrams.

Focus Areas:

Crystal structures (BCC, Miller indices, planes like 111 & 112)

Semiconductor basics (doping, mobility, conductivity)

Magnetic properties (Curie temperature, magnetostriction)

Thermoelectric effects (Seebeck, Thomson)

Metallic bonding

Basic numerical problems

Answers should be short, precise, and to the point.

SECTION B – Descriptive / Numerical (Attempt Any 3) (10 × 3 = 30 Marks)

Description:
This section includes long-answer questions. You need to attempt any three questions. Each question carries 10 marks.

Focus Areas:

Electrical conductivity & temperature effects

Bragg’s Law & X-ray diffraction

Continuity equation in semiconductors

Energy band theory (conductor, semiconductor, insulator)

Soft & hard magnetic materials with B-H curves

Numerical calculations related to mobility, drift, unit cell, etc.

Answers should include:

Proper explanation

Diagrams where required

Formula derivation

Step-by-step numerical solutions

SECTION C – Long Conceptual / Derivation (Attempt One Part from Each Question)

Description:
This section includes advanced theory and derivation-based questions.
You must attempt one part from each question.

Focus Areas:

Types of bonding (Ionic, Covalent, Metallic)

Miller Indices derivation

Ferromagnetism, Ferrimagnetism, Antiferromagnetism

JFET operation with characteristics

Hall Effect derivation

Superconductivity

Fermi surface & energy concepts

Hysteresis loss calculations

This section tests:

Deep conceptual understanding

Mathematical derivations

Diagrams & characteristic curves

Advanced numericals

Overall Paper Pattern Summary