PH6251 – ENGINEERING PHYSICS – II SYLLABUS (REGULATION 2013) ANNA UNIVERSITY

UNIT I CONDUCTING MATERIALS

(PH6251) Conductors – classical free electron theory of metals – Electrical and thermal conductivity – Wiedemann – Franz law – Lorentz number – Draw backs of classical theory – Quantum theory –Fermi distribution function – Effect of temperature on Fermi Function – Density of energy states – carrier concentration in metals.

UNIT II SEMICONDUCTING MATERIALS 

Intrinsic semiconductor – carrier concentration derivation – Fermi level – Variation of Fermi level with temperature – electrical conductivity – band gap determination – compound semiconductors -direct and indirect band gap- derivation of carrier concentration in n-type and p-type semiconductor – variation of Fermi level with temperature and impurity concentration –– Hall effect –Determination of Hall coefficient – Applications.

UNIT III MAGNETIC AND SUPERCONDUCTING MATERIALS 

Origin of magnetic moment – Bohr magneton – comparison of Dia, Para and Ferro magnetism. Domain theory – Hysteresis – soft and hard magnetic materials – antiferromagnetic materials. Ferrites and its applications Superconductivity : properties – Type I and Type II superconductors. BCS theory of superconductivity(Qualitative) – High Tc superconductors – Applications of superconductors – SQUID, cryotron, magnetic levitation.

UNIT IV DIELECTRIC MATERIALS 

Electrical susceptibility – dielectric constant – electronic, ionic, orientational and space charge polarization – frequency and temperature dependence of polarisation – internal field – Claussius – Mosotti relation (derivation) – dielectric loss – dielectric breakdown – uses of dielectric materials (capacitor and transformer) – ferroelectricity and applications.

UNIT V ADVANCED ENGINEERING MATERIALS 

Metallic glasses: preparation, properties and applications. Shape memory alloys (SMA): Characteristics, properties of NiTi alloy, application, Nanomaterials– Preparation -pulsed laser deposition – chemical vapour deposition – Applications – NLO materials –Birefringence- optical Kerr
effect – Classification of Biomaterials and its applications

 

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Course Curriculum

QUESTION BANK PH6251 ENGINEERING PHYSICS 2 FREE 00:00:00
Important questions
PH6251 Engineering Physics 2 Important 2 mark questions FREE 00:00:00
PH6251 Engineering Physics 2 Important big questions FREE 00:00:00
Unit 1
Conducting materials basics definitions FREE 00:30:00
Electrical conductivity FREE 00:30:00
Thermal – conductivity FREE 00:00:00
Wiedemann franz law FREE 00:00:00
merits of CFE element 00:00:00
Quantum free electron theory – fermi distribution function 00:00:00
Effects of temperature on fermi distribution function 00:30:00
Density of energy states & carrier concentration of metals 00:30:00
conducting materials problems 00:30:00
Unit 2
semiconductor introduction 00:00:00
semiconductor 00:00:00
intrinsic semiconductor ,carrier concentration 00:00:00
Density of holes in VB, intrinsic carrier concentration 00:30:00
Fermi level & its variation with temperature electrical conductivity 00:30:00
Variation of electrical conductivity with temperature band gap determination 00:00:00
Carrier concentration of n type semi conductor 00:30:00
variation of fermi level with temperature & impurity concentration 00:00:00
Carrier concentration P type semiconductor 00:30:00
Variation of fermi level with temperature & impurities 00:00:00
Hall effect 00:00:00
Co efficient in terms of hall voltage mobility of charges carrier 00:30:00
semiconductor problems 00:00:00
Unit 3
Magnetic materials introduction 00:00:00
Magnetic materials basics definitions 00:00:00
Magnetic materials 00:00:00
Domain theory of ferro magnetism, Domain magnetization, Explanation for orgin of domain 00:30:00
Hysteresis 00:00:00
Types of magnetic materials soft & hard 00:00:00
Anti ferro magnetic materials 00:30:00
Super conductors introduction 00:00:00
super conductor , properties of super conductor 00:00:00
Bcs theory 00:30:00
Josephson effect & Application 00:00:00
Magnetic materials problems 00:00:00
Unit 4
Dielectric materials introduction 00:30:00
Dielectric 00:30:00
Various polarization mechanism in dielectric electronic polarization 00:00:00
Ionic polarization, orientation polarization 00:00:00
Internal field or local field & deduction of clausius – mosothi equation 00:00:00
Dielectric loss , breakdown 00:30:00
Application of dielectric 00:30:00
Dielectric materials problems 00:30:00
Unit 5
Engineering materials introduction 00:30:00
Metallic glasses 00:00:00
Shape memory alloy 00:00:00
Nano materials 00:00:00
Nano materials application 00:00:00
Non linear optical materials 00:00:00
Bio materials 00:30:00

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