Ampere

The ampere (A) is the unit of electrical current (I). The unit is named after the French physicist and mathematician André-Marie Ampère (1775 – 1836).

The ampere (A) is defined by fixing the electron charge e to be 1.602,176,634×10^-19 C (= A·s), where second is defined by the atomic clock.

Related units

• base units
• coulomb
• farad
• joule
• ohm
• statcoulomb
• statvolt
• volt
• watt