Ampere to Microampere Converter

An ampere (A) is the SI base unit of electric current, defined as the flow of one coulomb of electric charge per second. It represents the fundamental measure of electrical current flow in a conductor.

The ampere was named after French physicist André-Marie Ampère in 1881. Originally defined in terms of the force between current-carrying conductors, it was redefined in 2019 based on the elementary charge, providing a more fundamental and precise definition tied to quantum mechanics.

Amperes are universally used for measuring electrical current in all applications, from household electronics to industrial systems. They're essential for electrical safety, circuit design, power calculations, and are found on every electrical device rating, fuse, and circuit breaker.

A microampere (μA) is a unit of electric current equal to one millionth of an ampere. It represents very small current levels found in precision electronics, biological systems, and ultra-low-power devices.

The microampere became necessary with the advancement of precision electronics and biological measurements in the mid-20th century. It was particularly important for measuring currents in transistors, integrated circuits, and biological systems where currents are extremely small.

Microamperes are used in precision electronics, biomedical measurements, semiconductor testing, and ultra-low-power devices. They're essential for measuring leakage currents, biological signals (like nerve impulses), and current consumption in battery-powered devices and IoT sensors.