The SI unit for electric current is the ampere, symbolized as A. It is defined as the flow of one coulomb of electric charge per second through a conductor. This means that if one coulomb (which is about 6.241×10186.241\times 10^{18}6.241×1018 elementary charges) passes a point in a circuit every second, the current is one ampere. The ampere is named after the French physicist André-Marie Ampère. It is a fundamental base unit in the International System of Units (SI) used widely in science and engineering to measure electric current. Electric current is typically measured with an ammeter, and the ampere plays a crucial role in electrical applications, from powering household devices to industrial machinery.
