Unit aA
Name attoampere
Category Electric Current
Details The attoampere (aA) is a unit of electric current in the International System of Units (SI). It represents an extremely small amount of electrical current, with 1 attoampere being equal to 10^-18 amperes. The prefix "atto" signifies a factor of 10^-18, so an attoampere is 1 x 10^-18 times the base unit of electric current, the ampere (A).

In the field of electric current, attoamperes are used to describe incredibly small current flows, such as those typically found in nanoscale or quantum devices, minute sensors, and advanced electronics. Due to their minuscule nature, currents in the attoampere range require specialized measuring equipment and techniques to be accurately characterized.