影響揭陽電磁鐵磁力大(da)小的因素主要有四(si)個:
一(yi)是(shi)(shi)纏(chan)繞在鐵(tie)芯(xin)上線圈(quan)的(de)(de)圈(quan)數,二是(shi)(shi)線圈(quan)中電流(liu)的(de)(de)強度(du),三是(shi)(shi)纏(chan)繞的(de)(de)線圈(quan)與鐵(tie)芯(xin)的(de)(de)距離,四是(shi)(shi)鐵(tie)芯(xin)的(de)(de)大小形狀(zhuang)。
首(shou)先(xian)要了解電(dian)(dian)(dian)磁鐵的(de)磁性是(shi)如(ru)何產生(sheng)的(de),通(tong)電(dian)(dian)(dian)螺線(xian)(xian)(xian)管的(de)磁場,由畢奧(ao)-薩伐爾(er)定(ding)律應(ying)為B=u0*n*I,B為磁感(gan)應(ying)強度(du),u0為常(chang)數(shu), n為螺線(xian)(xian)(xian)管匝數(shu),I為導(dao)線(xian)(xian)(xian)中的(de)電(dian)(dian)(dian)流(liu),所以磁場大小(xiao)是(shi)由電(dian)(dian)(dian)流(liu)大小(xiao)與螺線(xian)(xian)(xian)管匝數(shu)決定(ding)的(de)!
揭陽電磁鐵的磁力(li)大小與什么有關?