A current can also be induced by constantly moving a permanent magnet in and out of a coil of wire or by constantly moving a conductor near a stationary permanent magnet.
让永久磁铁在线圈中进出运动或让一个导体在固定的永久磁铁附近的区域移动，也会产生电流。
2
C is a second coil formed by a conductor of much larger size and smaller length, wound around and in proximity to coil a.
是一个次极线圈，由相当大的尺寸和较小的长度构成，环绕与线圈a接近。
3
This paper presents a new suspension system with hybrid electromagnets made of high temperature superconductor and normal conductorcoil.