运动磁通量与电磁感应
Moving Magnetic Flux and Electromagnetic Induction
AI总结:
该研究指出运动磁通量与感应电场相关,其矢量和决定感应电场,可解释长螺线管感应电动势与单极感应,且该解释可检验。
AI中文摘要:
磁通量可以运动,运动的磁通量与感应电场相关。当存在多个通量源时,感应电场是各通量单独产生的感应场的矢量和,它不一定与合磁场相关。关键见解是,通量可以穿过磁场本身消失的区域,就像电荷可以作为电流穿过净电荷密度为零的区域一样。因此,运动的通量可以解释电流变化的长螺线管周围的感应电动势,也可以解释单极感应,且这种解释是可检验的。
英文摘要:
Magnetic flux can move, and moving magnetic flux is associated with induced electric fields. Where there are multiple sources of flux, the induced electric field is the vector resultant of the induced fields attributable to the fluxes acting individually; it is not necessarily associated with the resultant magnetic field. The key insight is that flux can move through regions in which the magnetic field itself vanishes, much as electric charge can move (as electric current) through a region in which the net charge density is zero. For this reason, moving flux can account for the induced emf around a long solenoid in which the current is changing. It also accounts for unipolar induction, and this account is testable.