›› Measurement unit: amp

Full name: ampere

Plural form: amperes

Symbol: A

Alternate spelling: amps

Category type: electric current

Scale factor: 1


›› SI unit: ampere

The SI base unit for electric current is the ampere.
1 ampere is equal to 1 amp.


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›› Definition: Amp

In physics, the ampere (symbol: A, often informally abbreviated to amp) is the SI base unit used to measure electrical currents. The present definition, adopted by the 9th CGPM in 1948 is: "one ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed one metre apart in vacuum, would produce between these conductors a force equal to 2 × 10-7 newton per metre of length".


›› Sample conversions: amp

amp to coulomb/second
amp to ampere
amp to microampere
amp to centiampere
amp to statampere
amp to attoampere
amp to nanoampere
amp to electromagnetic unit of current
amp to gaussian electric current
amp to abampere