Current
refers to the flow of electric charge of a group . Called the current size of
the current strength, is the unit of time lead to a cross-section through the
charge per second by the amount of charge is called a Coulomb 1 amp. Ampere is
one of the seven basic units of the international system of units. Ampere meter
is designed to measure the current instruments.
Nature has a
variety of carrier charge carriers, for example, the conductive body can move
electrons, ions within the electrolyte, electrons and ion plasma within the
quarks inside hadrons. These mobile carriers to form a current. There are some
effects and current relevant, such as heating effect of current, according to
Ampere's law, current will produce a magnetic field, motors, inductors and
generators and effects associated with this.
I will use
the current symbol indicates that the origin of the French intensité de courant
(current intensity, current strength). Symbol I first used by French scientist
Andre - Marie Ampere use, and therefore the current unit Ampere to name. Later
this symbol spread from France to England, beginning becomes standard usage,
but in 1896 still represents current journals with C, instead of the now common.
