3 ms·
> current which produces 2 × 10−7 N/m of force between two parallel conductors Hate to be a stickler, but: "...conductors of negligible cross-section and of
by akira2501 10y ago
> current which produces 2 × 10−7 N/m of force between two parallel conductors
Hate to be a stickler, but: "...conductors of negligible cross-section and of infinite length." It's still one of my least favorite SI definitions.
- MereInterest 10y agoIf anybody wants to read lots of commentary on units and their definitions, take a look at the data sheets for the Frink language. The ampere and the candela are two of the more irksome ones, as described by the author. https://frinklang.org/frinkdata/units.txt https://frinklang.org/frinkdata/units.txt
- ghaff 10y agoFascinating. Thanks! At one point I wrote a unit conversion program before such things were ubiquitous and I included a field that had information about the units involved. In service of this, I copied a number of older books on measurement units though I never got around to folding most of this into my program.