The term electricity (from the greek ἤλεκτρον, which means "amber ") refers generically to all macroscopic phenomena involving one of the fundamental interactions , the ' electromagnetism With particular reference to ' electrostatic . At the microscopic level these phenomena are due to the interaction between charged particles on the molecular scale : the protons in the nucleus of ionized atoms or molecules , and electrons. The typical macroscopic effects of these interactions are the electrical currents and attraction or repulsion of electric body loads.
Electricity is responsible for the well-known physical phenomena such as lightning ol ' electrification, and represents the essential element of some industrial applications such as' electronic el ' Electrotechnical . It became at once the most popular means of transport for the 'energy and one of the most common means of transport for the information, electricity has become a symbol of the modern world: light homes, run factories, and makes the neighbors more distant peoples.
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