We explain what electrical energy is and what it is for. In addition, how it is produced, types of electrical energy and examples.
Electricity or electricity is the current of energy that originates from the difference in electrical potential between two specific points , when they are contacted by an electric transmitter.
This current consists of the transmission of negative charges ( electrons ) through a material conducive to it, such as metals , from the point of generation (and / or storage) to the point of consumption, which usually takes advantage of it for convert it into other forms of energy: light, mechanical or thermal.
In everyday life, the electrical energy we consume comes from a power line or network , which we access through plugs or outlets, as well as from the installation of electrical circuits in our homes, such as those we activate by turning on a power switch. light. This network is powered by the companies that provide this service, which are usually in charge of the generation and distribution of electricity in cities , regions or entire countries.
Electricity exists in nature and is an important part of numerous biological processes , including the body of man. The neurons of our brain and the nerve impulses of our spinal cord, for example, are electrical in nature, as is the small discharge that certain eels are able to transmit when they feel threatened. Another perfect example of this is thunderstorms, in which lightning strikes.
The field of physics in charge of the study of this type of energy is electrical physics or electricity, and dates back to the 18th century, although there are traceable antecedents since ancient times.
We can talk about different forms of electricity:
On the other hand, two forms of electric current are known, thanks to Nikola Tesla’s experiences and studies: ordinary and alternating current, the latter being the one that varies cyclically in its magnitude and meaning.
The great power of electricity is its ability to transform into other forms of energy , making it an extremely versatile resource. It can be powered with electricity to a machine that performs certain tasks, both physical and calculation, or light a room with a light bulb, or heat it during the winter thanks to a resistance.
There are several ways to generate electrical energy, a process that is normally carried out in a power plant, or in small quantities in specialized devices.
Once this electricity is produced, it is transmitted through the power lines to the cities and facilities that require it or is stored in various types of circuits.
Some everyday examples of the use of electricity are:
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