Forces entre courants parallèles

samedi 7 janvier 2017
popularité : 1%

In contrast to Coulomb’s law, parallel current elements attract (signified by the minus sign) while opposing currents repel. The formal SI definition of the ampere is "the constant current which will produce an attractive force of 2 x 10-7 newtons per meter of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one meter apart in a vacuum."