Current intensity: I = Q power /t2

Scientifically, the amount of electricity passing through any section of a conductor in unit time is called current intensity, which is called current for short. Usually expressed by the letter I, its unit is ampere (André-Marie Ampère), 1775- 1836, a French physicist and chemist, who has made outstanding achievements in the research of electromagnetic action and contributed to mathematics and physics. Ampere, the international unit of current, is named after its surname. The symbol "a" also guides the directional motion of charges in the body.