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Electricity is a powerful property of matter that results from either the presence or the movement of an electric charge. Electricity and magnetism constitute the most fundamental interaction which is known as electromagnetism. Electricity is responsible for several physical phenomena, including lightning, electric currents, and electric fields and used in industrial applications such as household electronics and electrical power.
An electric current is simply a flow of electric charge. It is measured in amperes. Electric currents include examples such as metallic conduction, where electrons flow through a conductor (i.e. metal wire), and electrolysis, where ions (which is charged atoms) flow through liquid. The particles themselves often move slowly, but the electric field that drives them travels at close to the speed of light.
Every single consumer uses appliances that convert the electrical energy to another form of energy, such as heat (like in electric heaters), light (such as light bulbs or fluorescent lamps), or motion, or kinetic energy (electric motors for example). Like a power station, each appliance is rated in watts, which depends upon the rate at which it converts electrical energy into some other form. The power station must thus produce electrical energy at the same rate as the entire cluster of connected appliances consume it.