Using the slider to drive a metal bar to cut perpendicularly the uniform magnetic field in the center of a Helmholtz coil, induction electromotive force could be produced. 摘要利用滑块带动金属杆切割亥姆霍兹线圈中心区域匀强磁场的磁感应线。
A unit of magnetic flux density equals to 1 maxwell per square centimeter. 一种磁通量密度单位,等于每平方厘米麦克斯韦。