The ampere , also called ampere , is the unit of intensity of electric current constant load per unit time traveled by a material which thereby maintaining, in two parallel conductors, straight, infinitely long, of circular cross section and located at one meter from each other in a vacuum, it produces a force equal to 2 × 10-7 .
As a consequence, the ampere is an integral part of the basic units in the International System of Measurements, as is the case with the meter, the second and even the kilogram and has received such a name in honor of André-Marie Ampere , a mathematician and physicist. French that gained enormous relevance in the 19th century, after for example discovering the mutual actions between electric currents, demonstrating, without a doubt, what we mentioned earlier, that two parallel conductors through which a current circulates in the same direction They will inevitably attract each other, on the other hand, if the directions of the current are opposite, they will repel each other.
On the other hand, the symbol with which the ampere or ampere is represented is the capital letter a (A), this is so because in the units established by the International System of Measurements if the unit has been denominated with the proper name of a individual, such is the case of the ampere, the symbol will be the first letter of the proper name in question and it will be written in capital letters.