Voltio

Voltio is the Spanish term for the SI unit of electric potential difference, electromotive force, and electric potential. The symbol for the volt is V. The volt is defined as the potential difference between two points of a conductor when a constant current of one ampere, passing through the conductor, would dissipate one watt of power between those points. In base units, one volt equals one joule per coulomb (1 V = 1 J/C). The unit is named after the Italian physicist Alessandro Volta.

The volt is a derived SI unit widely used to quantify electrical potential differences, battery voltages, and supply voltages in circuits and devices. Submultiples and multiples include the millivolt (mV), microvolt (µV), kilovolt (kV), and megavolt (MV). In everyday life, voltages range from small fractions of a volt in sensors to hundreds or thousands of volts in power distribution systems.

In modern metrology, the volt is realized with reference to fundamental constants, notably through phenomena such as the Josephson effect for voltage standards and the quantum Hall effect for resistance, which provide stable links between electrical units and invariant natural constants.

Voltiо is used in Spanish-language texts to refer to this unit; in English texts the term volt is used, while other languages may use equivalent forms. The related term voltaje denotes voltage, the potential difference across a circuit element. See also: volt, voltage, Ohm’s law, electrical potential.