ABSTRACT
Electricity is a widely used, efficient and convenient, but potentially hazardous method of transmitting and using energy. It is in use in every factory, workshop, laboratory and office in the country. In simple terms, electricity is the flow or movement of electrons through a substance which allows the transfer of electrical energy from one position to another. The higher the pressure drop is along the pipeline, the greater will be the flow rate of water and, in a similar way, the higher the electrical ‘pressure difference’ along the conductor, the higher the current will be. Conductors are nearly always metals, copper being a particularly good conductor, and are usually in wire form but they can be gases or liquids, water being a particularly good conductor of electricity. Superconductor is a term given to certain metals which have a very low resistance to electricity at low temperatures.
