Electrical Technology

The students will be able to understand the fundamental principles and concept of physics, use these to solve problems in practical situations/technological courses and understand concepts to learn advance physics/technical courses.

1 MEASUREMENTS.                                                                     2 Hours.
1.1 Fundamental units and derived units
1.2 Systems of measurement and S.I. units
1.3 Concept of dimensions, dimensional formula
1.4 Conversion from one system to another
1.5 Significant figures
2 SCALARS AND VECTORS.                                                        4 Hours.
2.1 Revision of head to tail rule
2.2 Laws of parallelogram, triangle and polygon of forces
2.3 Resolution of a vector
2.4 Addition of vectors by rectangular components
2.5 Multiplication of two vectors, dot product and cross product
3 WAVE MOTION.                                                                           5 Hours
3.1 Review Hooke’s law of elasticity
3.2 Motion under an elastic restoring force
3.3 Characteristics of simple harmonic motion
3.4 S.H.M. and circular motion
3.5 Simple pendulum
3.6 Wave form of S.H.M.
3.7 Resonance
3.8 Transverse vibration of a stretched string
4 SOUND.                                                                                        5 Hrs
4.1 Longitudinal waves
4.2 Intensity, loudness, pitch and quality of sound
4.3 Units of Intensity of level and frequency response of ear
4.4 Interference of sound waves silence zones, beats
4.5 Acoustics
4.6 Doppler effect.
5 LIGHT.                                                                                           5 Hours
5.1 Review laws of reflection and refraction
5.2 Image formation by mirrors and lenses
5.3 Optical instruments
5.4 Wave theory of light
5.5 Interference, diffraction, polarization of light waves
5.6 Applications of polarization in sunglasses, optical activity

6 OPTICAL FIBER.                                                                            2 Hours
6.1 Optical communication and problems
6.2 Review total internal reflection and critical angle
6.3 Structure of optical fiber
6.4 Fiber material and manufacture
6.5 Optical fiber – uses.
7 LASERS.                                                                                        3 Hours
7.1 Corpuscular theory of light
7.2 Emission and absorption of light
7.3 Stimulated absorption and emission of light
7.4 Laser principle
7.5 Structure and working of lasers
7.6 Types of lasers with brief description.
7.7 Applications (basic concepts)
7.8 Material processing
7.9 Laser welding
7.10 Laser assisted machining
7.11 Micro machining
7.12 Drilling, scribing and marking
7.13 Printing
7.14 Lasers in medicine
8 HEAT.                                                                                              4 hrs.
8.1 Review of calorimetry and gas laws
8.2 Thermal expansion of solids, liquids and gases
8.3 Heat of fusion, vaporization
8.4 Humidity, absolute and relative
8.5 Law of cooling
8.6 Thermoelectricity
8.7 Thermocouple.
9 MAGNETIC MATERIALS.                                                             2 Hours
9.1 Magnetism
9.2 Domains theory
9.3 Para, dia and ferromagnetism and magnetic materials
9.4 B.H. curve and hysterisis loop.
10 SEMI CONDUCTOR MATERIALS.                                              2 Hours
10.1 Crystalline structure of solids
10.2 Conductors, semiconductors, insulators
10.3 P-type and N-type materials
10.4 P-N junction
10.5 P-N junction as a diode
10.6 Photovoltaic cell (solar cell)

RECOMMENDED BOOKS
1 Tahir Hussain, Fundamentals of Physics Vol-I and II
2 Farid Khawaja, Fundamentals of Physics Vol-I and II
3 Wells and Slusher, Schaum’s Series Physics .

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