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Vocabulary Term Details


Definition (

The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10–7 newton per metre of length. (BIPM)

Preferred Units: N/A

Scope Note:

Broader TermsNarrower TermsRelated Terms
SI base units
Units of electric current

This term is used for the following terms: 
A (unit)
Amp (unit)

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