2.1 Conducting Materials
Introduction
2.2 Resistance and factors affecting it such as alloying and
temperature etc.
2.3 Classification of conducting material as low resistivity and high
resistivity materials, Low resistance materials
a. Copper- General properties as conductor: Resistivity, temperature
coefficient, density, mechanical properties of hard-drawn and annealed copper,
corrosion, contact resistance. Application in the field of electrical
engineering
b. Aluminium - General properties as conductor: Resistivity,
temperature coefficient, density, mechanical properties of hard and annealed
aluminium, solderability, contact resistance. Applications of aluminium in the
field of electrical engineering
c. Steel - General properties as conductor: Resistivity, corrosion,
temperature coefficient, density, mechanical properties, solderability,
Applications in the field of electrical engineering Introduction to bundle
conductors and its applications Low resistivity copper alloys: Brass, Bronze
(cadmium and Beryllium), and their practical applications with reasons for the
same
2.4 Applications of special metals e.g. Silver, Gold, Platinum etc.
2.5 High resistivity materials and their applications e.g., manganin,
constantin, nichrome, mercury, platinum, carbon and tungsten, Tantalum.
2.6 Superconductors and their applications.