Patent ID: 8866019

Claim:
An electric wire, comprising: a conductive portion made of a material having a volume 5 resistivity higher than that of copper, wherein an AC resistance value of the electric wire has a first frequency equal to an AC resistance value of a copper wire having the same diameter and length as the conductive portion, and a second frequency which is larger than the first frequency and has an AC resistance value of the electric wire equal to the AC resistance value of the copper wire between the first frequency and the second frequency, the AC resistance value of the electric wire is smaller than the AC resistance value of the cooper wire between the first frequency and the second frequency, a frequency range in which the electric wire is used between 1 kHz to 1 MHz and a volume resistivity of the conductive portion is specified so that the frequency in which th electric wire is used is set within a frequency range of between the first frequency and the second frequency, and a DC resistance value of the conductive portion per unit length obtained by dividing the volume resistivity of the conductive portion per unit length obtained by dividing the volume resistivity of the conductive portion by a cross-sectional area so that the second frequency is not less than the upper limit of the frequency in which the electric wire is used is specified by a relationship of 0.7×10 (0.925×log 10 Rdc+2.24) ≦f 2 ≦1.3×10 (0.925×log 10 Rdc+2.24) [Equation 1] where Rdc (mΩ/cm) is the DC resistance value and f 2 (kHz) is the second frequency.