南寧(ning)電(dian)磁(ci)鐵(tie)工(gong)作(zuo)原理及南寧(ning)電(dian)磁(ci)鐵(tie)的應用(yong)
南寧(ning)(ning)電(dian)(dian)(dian)磁(ci)(ci)鐵的(de)(de)發(fa)明1822年,法(fa)國物(wu)理學家阿拉(la)戈和呂(lv)薩克發(fa)現,當電(dian)(dian)(dian)流通(tong)過其中(zhong)有(you)鐵塊(kuai)的(de)(de)繞線(xian)時,它能使(shi)繞線(xian)中(zhong)的(de)(de)鐵塊(kuai)磁(ci)(ci)化(hua)。這實際(ji)上(shang)是南寧(ning)(ning)電(dian)(dian)(dian)磁(ci)(ci)鐵原理的(de)(de)最初發(fa)現。1823年,斯特(te)金也做了一次類似的(de)(de)實驗:他在一根并(bing)非(fei)是磁(ci)(ci)鐵棒(bang)(bang)的(de)(de)U型鐵棒(bang)(bang)上(shang)繞了18圈(quan)銅裸線(xian),當銅線(xian)與(yu)伏打電(dian)(dian)(dian)池接通(tong)時,繞在U型鐵棒(bang)(bang)上(shang)的(de)(de)銅線(xian)圈(quan)即產生了密集的(de)(de)磁(ci)(ci)場(chang),這樣就使(shi)U型鐵棒(bang)(bang)變成(cheng)了一塊(kuai)“南寧(ning)(ning)電(dian)(dian)(dian)磁(ci)(ci)鐵”。這種(zhong)南寧(ning)(ning)電(dian)(dian)(dian)磁(ci)(ci)鐵上(shang)的(de)(de)磁(ci)(ci)能要(yao)比永磁(ci)(ci)能大放多(duo)倍,它能吸起(qi)比它重20倍的(de)(de)鐵塊(kuai)