Download AKTU B-Tech 8th Sem 2016-17 Electrical And Electronics Engg. Materials Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 8th Semester (Eight Semester) 2016-17 Electrical And Electronics Engg. Materials Question Paper

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B. TECH.
THEORY EXAMINATION (SEM?VIII) 2016-17
ELECTRICAL AND ELECTRONICS ENGG. MATERIALS
3 Hours Max. Marks : 100
Be precise in your answer. In case Ofnumerical problem assume data wherever not provided.
SECTION ? A
Attempt all parts of the following questions: 10 x 2 = 20
(3) Define fatigue in materials.
(b) What are unit cells?
(c) Define polymorphism and allotropy in crystal.
(d) Classify different solid materials based on conductivity.
(e) Define Fermi energy.
(f) What do you mean by doping?
(g) Write few applications of superconductivity
(h) What do you mean by ionic bonds .Give example.
(1) Define magnetic induction, or magnetic ?ux density.
(i) What are intrinsic and extrinsic semiconductors?
SECTION ? B
Attempt any five of the following questions: 5 x 10 = 50
(3) Explain superconductivity phenomenon in detail.
(b) Explain X?RAY diffraction phenomenon.
(c) Explain piezoelectricity in materials.
((1) Explain transistors and their phenomenon of Operation.
(e) Explain types of polarization.
(f) Explain Hall Effect in detail.
(g) Determine atomic packing fraction and volume of FCC crystal structure.
(h) Explain stress strain concept in solids.
SECTION ? C
Attempt any two of the following questions: 2 x 15 = 30
Explain defects in crystals.
Draw table for Lattice Parameter Relationships and Figures Showing Unit Cell Geometries for
the Seven Crystal Systems.
Classify different magnetic materials.
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