Electrical Conducting Materials Pdf

It is silvery white in colour and it has a soft texture.

Electrical conducting materials pdf.

Insulating materials insulating materials are used for insulating purpose. 2 2 resistivity and conductivity electrical resistivity or specific resistance. See electrical conduction for more information on the physical mechanism for charge flow in materials. These types of materials are bad conductors of current.

Some of low resistivity or high conductivity materials and their resistivity. Conductors semiconductors and imperfect insulators. Module ii 10 hours dielectric properties. Conductor s use is identified and made distinguishable from the other circuit conductors is the use of color coding.

Introduction effect of a dielectric on the behavior of a capacitor polarization the dielectric constant of monatomic gases frequency dependence of permittivity. Patterning conductive materials on fabric substrates to form electrical circuits and to achieve conductivity gradients have been reported in the literature. 26 27 processes that have been employed to form a patterned conductive path on fabric surfaces include deposition of polymeric or non polymeric conducting materials and subsequent etching. Material having low resistivity or high conductivity are very useful in electrical engineering products.

σ 1 ρ since the electric field intensityin the material is e v l. Other materials non conducting materials lack mobile charges and are called insulators. These material used as conductors for all kind of windings required in electrical machines apparatus and devices. Therefore this type of conducting material is mostly used in electrical wiring.

Conducting materials should be able to withstand high temperatures and should have minimum power loss even when large current are passing through them. Conductor materials while many conductors are metallic there are many non metallic conductors as well including all plasmas. E j its unit is 1m 1 or sm 1. It is often used in wiring and making cable fig.

13 2 conducting materials 2 1 introduction materials which allow current to pass through them easily are called conducting materials e g. Introduction to materials science chapter 18 electrical conductivity 3 basic laws and electrical properties of metals ii the electrical conductivity the ability of a substance to conduct an electric current is the inverse of the resistivity. Pdf conducting materials may be classified into three groups. The grounded conductor of a branch circuit shall be identified by a continuous white or natural gray color.

Silver copper has the same electrical conductivity as ordinary high. Of metals electrical conducting materials thermal properties thermal conductivity of metals thermoelectric effects. Acceptable color coding includes the method required by the national electrical code section 210 5. When an electrical field e is applied to an electron of charge e of a metallic rod the electron.