导体的电阻 meaning in Chinese

resistance of conductors

The resistance of a conductor varies directly with its length , conversely withits cross - sectional area
导体的电阻与其长度成正比，与其横截面积成反比。
A unit of electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals
欧姆电阻单位，一段导体两端的电位差为伏特时产生一安培电流，那么这段导体的电阻就等于欧姆
Skin effect is the tendency for alternating current to flow near the sruface of the conductor in lieu of flowing in a manner as to utilize the entire cross - sectional area of the conductor . this phenomenon causes the resistance of the conductor to increase . the magnetic field associated with the current in the conductor causes eddy currents near the center of the conductor which opposes the flow of the main current near the center of the conductor . the main current flow is forced further to the surface as the frequency of the alternating current increase
表面疚是指交流电流较倾向于导体的表面传导而非流经整个导体截面的趋势，这些现象会造成导体的电阻提高，与导体中的电流有关的磁场在导体中心部位产生过电流而阻碍了中心部位的主要电流，当交流电的频率增加时，主要电流的流向会进一步被推挤到导体表面。