GBPHT121-PHYSICS FOR ELECTRICAL SCIENCE

Course code                      :  GBPHT121

Course name                     :  PHYSICS FOR ELECTRICAL SCIENCE

COURSE OBJECTIVES

1. 1. To provide students with a solid background in the fundamentals of Physics and to impart this knowledge in Electrical Science disciplines.
   2. To develop scientific attitudes and enable students to correlate Physics concepts with their core programs.
   3. To equip students with practical knowledge that complements their theoretical studies and develop their ability to create practical applications and solutions in engineering based on their understanding of Physics.

COURSE OUTCOMES

CO1 : Explain the fundamentals of Semiconductor Physics

C02 : Describe the behaviour of semiconductor materials in semiconductor devices.

CO3 : Explain Superconductivity and basic theory of dielectrics

CO4 : Apply the comprehended knowledge about laser and fibre optics in various engineering applications

CO5 : Apply basic knowledge of principles and theories in physics to conduct experiments

SYLLABUS DESCRIPTION

1.Semiconductor Physics

Intrinsic semiconductor, Derivation of density of electrons in conduction band and density of holes in valence band, Intrinsic carrier concentration, Variation of Intrinsic carrier concentration with temperature, Extrinsic semiconductor (qualitative)

Formation of p-n junction, Fermi level in semiconductors-intrinsic and extrinsic, Energy band diagram of p-n junction – Qualitative description of charge flow across a p-n junction – Forward and reverse biased p-n junctions, Diode equation (Derivation), V-I Characteristics of p-n junction

2. Semiconductor Devices

Semiconductor devices – Rectifiers- Full wave and Half wave, Zener diode – V-I characteristics – Zener breakdown and Avalanche breakdown, Tunnel diode – V-I characteristics, Applications of Zener and Tunnel diodes.

Photonic devices (qualitative) – Photo detectors (Junction and PIN photodiodes), Applications, Solar cells- V-I Characteristics, Efficiency, Stringing of Solar cells to solar panel, Light Emitting Diode, Applications of LED

3. Superconductivity & Dielectrics

Super conductivity, Transition temperature, Critical field, Meissner effect, Type I and Type II Super conductors, Applications of superconductors. Dielectric constant, Polarization, Permittivity- relative permittivity, Relation between polarization and dielectric constant, Types of  Polarization, Internal fields in liquids and solids, Clausius Mossotti Relation, Dielectric loss(qualitative), Dielectric breakdown (qualitative)

4.Laser & Fiber Optics

Optical processes – Absorption, Spontaneous emission and stimulated emission, Properties of laser, Principle of laser – conditions for sustained lasing – Population inversion, Pumping, Metastable states, Basic components of laser – Active medium- Optical resonant cavity, Construction and working of Ruby laser, Semiconductor Laser

(Qualitative), Applications of laser.

Optical fiber-Principle of propagation of light, Types of fibers-Step index and Graded index fibers, Numerical aperture –Derivation, Applications of optical fibers – Fiber optic communication system (block diagram)

COURSE REFERENCES

1. Arthur Beiser ,” Concepts of Modern Physics “, Tata McGraw Hill Publications , 6^th Edition, 2003
2. MN Avadhanulu, P G Kshirsagar, TVS Arun murthy ,” A Textbook of Engineering Physics “,S. Chand,11^th Edition, 2018 
3. S.O. Pillai ,” Solid State Physics “, New-age international publishers, 10^th Edition, 2022