磁通量[Magnetic Flux] - 达人(其实～我是卧底，来自外星)

2005/10/01 | 磁通量[Magnetic Flux]
类别(Ω〖物理〗) | 评论(0) | 阅读(29) | 发表于 20:19: Measuring the magnetic field passing through a cross sectional area S gives the magnetic flux , where

B is the magnetic field vector, and is a differential unit of area pointing perpendicular to the surface S.Knowing allows the electromotive force produced in a current ring with S as its boundary to be computed using Faraday's law as

Therefore, an electromotive force is created only when the flux changes with time, which means only when B or change with time.; 0