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. 摘要利用滑塊帶動(dòng)金屬桿切割亥姆霍茲線(xiàn)圈中心區域勻強磁場(chǎng)的磁感應線(xiàn)。
A unit of magnetic flux density equals to 1 maxwell per square centimeter. 一種磁通量密度單位，等于每平方厘米麥克斯韋。
