佛(fo)山電(dian)磁(ci)鐵工作(zuo)原理及佛(fo)山電(dian)磁(ci)鐵的應用(yong)
佛(fo)山電(dian)磁(ci)(ci)鐵(tie)的(de)(de)(de)發明1822年，法國物理(li)學家阿拉戈和呂薩克發現，當電(dian)流(liu)通過其(qi)中(zhong)有(you)鐵(tie)塊的(de)(de)(de)繞(rao)(rao)線(xian)(xian)時(shi)(shi)，它(ta)(ta)能(neng)使(shi)繞(rao)(rao)線(xian)(xian)中(zhong)的(de)(de)(de)鐵(tie)塊磁(ci)(ci)化(hua)。這實(shi)際上(shang)(shang)(shang)是佛(fo)山電(dian)磁(ci)(ci)鐵(tie)原(yuan)理(li)的(de)(de)(de)最初發現。1823年，斯特金(jin)也做了(le)(le)一次類似的(de)(de)(de)實(shi)驗：他在一根并(bing)非是磁(ci)(ci)鐵(tie)棒的(de)(de)(de)U型(xing)(xing)鐵(tie)棒上(shang)(shang)(shang)繞(rao)(rao)了(le)(le)18圈銅(tong)(tong)裸線(xian)(xian)，當銅(tong)(tong)線(xian)(xian)與伏打電(dian)池接通時(shi)(shi)，繞(rao)(rao)在U型(xing)(xing)鐵(tie)棒上(shang)(shang)(shang)的(de)(de)(de)銅(tong)(tong)線(xian)(xian)圈即產(chan)生了(le)(le)密(mi)集的(de)(de)(de)磁(ci)(ci)場(chang)，這樣就使(shi)U型(xing)(xing)鐵(tie)棒變成了(le)(le)一塊“佛(fo)山電(dian)磁(ci)(ci)鐵(tie)”。這種(zhong)佛(fo)山電(dian)磁(ci)(ci)鐵(tie)上(shang)(shang)(shang)的(de)(de)(de)磁(ci)(ci)能(neng)要比永磁(ci)(ci)能(neng)大放多倍，它(ta)(ta)能(neng)吸起比它(ta)(ta)重(zhong)20倍的(de)(de)(de)鐵(tie)塊
