Milliampere to Abampere Converter

A milliampere (mA) is a unit of electric current equal to one thousandth of an ampere. It represents small current levels typically found in electronic circuits, sensors, and low-power devices.

The milliampere became important with the development of electronics and precision electrical measurements in the early 20th century. It provided a convenient scale for measuring currents in radio circuits, early computers, and electronic instruments where currents were much smaller than those in power applications.

Milliamperes are extensively used in electronics, medical devices, sensors, and low-power circuits. They're standard for measuring current consumption in smartphones, LED circuits, biomedical sensors, and electronic control systems. Most electronic specifications use milliamperes.

An abampere (abA), also called a biot, is a unit of electric current in the electromagnetic CGS system, equal to 10 amperes in SI units. It was defined based on the magnetic force between current-carrying conductors.

The abampere was developed as part of the electromagnetic CGS unit system in the late 19th century by physicists working on electromagnetic theory. It was designed to make electromagnetic equations simpler by eliminating certain constants, though it resulted in unfamiliar unit sizes.

Abamperes are rarely used in modern applications, appearing mainly in historical scientific literature and some specialized electromagnetic theory contexts. They've been largely replaced by SI units (amperes) in all practical applications and modern scientific work.