electrical classification of solids

Properties of Solids - Electrical Properties - Properties of solids have been exploited for various new innovations in electronic and magnetic devices like transistors, computers, telephones etc. Properties of the solids mainly depend upon their structure and..

Properties of solids have been exploited for various new innovations in electronic and magnetic devices like transistors, computers, telephones et..

Electrical conductivity varies from 10 8 Ohm cm - 1 in metals to 10 - 1 2 ohm - 1 cm - 1 in insulators. Based on their conductivity solids can be divided into three categories. (a) Conductors (b) Semiconductors (c) Insulato..

Substances whose constituents are not arranged in an orderly manner are called amorphous solids. They are also called pseudo solids and differ from crystalline solids in many respects. The common examples of amorphous solids are glass, rubber, fused silica, ..

Electric Current - A current is any motion of charge from one region to another. The illustration below shows two bodies at different potentials. When these are connected with a wire, free electrons flow from B to A until both bodies attain the same potential, after which the current ceas..

Current Electricity - One of the greatest discoveries of the eighteenth century was the discovery of electricity. Think of life today without electricity and you will realize the part electricity plays in our day to day life. Static charges will not heat a to..

Certain reactions take place with the help of an electric current.Example: Decomposition of acidulated water to give hydrogen and oxygen g..

Passage of electricity through a metal (or graphite) Passage of electricity through an electrolyte By flow of electrons which have negligible mass By flow of ions, which are very dense particles compared to the elements Metal (or graphite) does not decompose..

Dielectric Properties of Solids - Insulators do not conduct electricity because the electrons present in them are held tightly to the individual atoms or ions and are not free to move. However when electric field is applied polarization takes place because the nucleus ..

Bonding in Metallic Solids - More than 80 elements in the periodic table are metals. Metals are solids at ordinary temperature and pressure, with the exception (of mercury and gallium). Metals have characteristic properties such as: High thermal and electrical conducti..