1. Materials (32 hrs)
1.1Classification of materials: Conducting, semi-conducting and insulating
materials through a brief reference to their atomic structure.
1.2Conducting Materials: Resistivity and factors affecting resistivity.
Classification of conducting materials into low resistivity and high resistivity
materials.
1.3Insulating Materials:
- Electrical properties: Volume resistivity, surface resistance, dielectric loss,
dielectric strength (breakdown voltage) and dielectric constant.
-Thermal properties: Heat resistance, classification according to
temperature endurance, thermal conductivity.
- Brief introduction of the following materials and their applications. Mica,
Paper, Asbestos, Ceramic, Teflon, Acrylics, Silicon grease, Bakelite, Epoxy
Glass, Soldering Lead alloy.
1.4Magnetic Materials: Different Magnetic materials; (Dia, Para, Ferro) and
their properties. Ferro magnetism, Domains, permeability, Hysteresis loop.
Soft and hard, magnetic materials, their examples and typical applications.
1.5 Latest developments in Materials: Idea about latest materials in the light of
technological advancements like hybrid carbon, advanced ceramic , and
liquid crystals.
2. Components (32 hrs)
2.1 Capacitors:
a) Concept of capacitance and capacitors, units of capacitance, types of
capacitors, constructional details and testing specifications.
b) Capacity of parallel plate capacitors, spherical capacitors, cylindrical
capacitor.
c) Energy stored in a capacitor.
d) Concept of dielectric and its effects on capacitance, di-electric constant,
break down voltage.
2.2Resistors: Carbon film, metal film, carbon composition, wound and variable
types (presets and potentiometers).
2.3Transformer, inductors and RF coils: Methods of manufacture, testing, Need
of shielding, application and trouble shooting.
2.4Surface Mounted Devices (SMDs): Constructional details and specifications.
2.5Connectors, Relays, switches and cables: Different types of connectors,
relays, switches and cables, their symbols, specifications, construction,
types, applications and their testing.
2.6 Semi Conductors and Integrated Circuits: Basic characteristics of
Semiconductor materials, diodes, transistors, FETs, and SCRs. Various
processes in IC manufacturing. Superconductivity and piezoelectric ceramic
transducer elements