Qhov sib nqus ntawm lub hlau nplaum yog txiav txim los ntawm cov yam ntxwv ntawm cov hlau nplaum. Yog hais tias lub caij piv txwv atomic, txhais tau hais tias magnetic field los ntawm qhov tam sim no magnetizes lwm yam khoom, thiab cov khoom siv magnetized generates ib qho hluav taws xob, thiab lub teb hluav taws xob ua ke los tsim ib lub zog.
Qhov teeb meem feem ntau yog tsim los ntawm molecules, molecules yog ua los ntawm atoms, thiab atoms muaj li ntawm nuclei thiab electrons. Hauv tsev atom, lub electrons tig tag nrho txoj kev thiab tig ncig lub nucleus. Ob ntawm cov dej num ntawm electrons ua magnetism. Txawm li cas los xij, feem ntau cov khoom siv, kev siv hluav taws xob tsis yog tib yam, tsis muaj teeb meem, thiab cov nyhuv magnet cuam tshuam ib leeg. Yog li, feem ntau cov khoom tsis pom muaj magnetism nyob rau hauv ib txwm muaj mob thiab tsis muaj qhov sib txawv ntawm kev sib nqus.
Vim li cas cov magnet magnetic? Vim yog qhov txawv ntawm ferromagnetic cov ntaub ntawv xws li hlau, cobalt, npib los yog ferrite, cov electron spins yuav tsum tau tsim kho nyob rau hauv ib chav me me kom tsim tau ib thaj chaw khiav dej num magnetization. Qhov chaw khiav dej num meej tshaj qhov no yog hu ua qhov chaw sib nqus. Tom qab ferromagnetic tshuaj yog magnetized, cov hlau nplaum sib nqus hauv cov hlua tuaj ywj thiab ua rau tib txoj kev los txhim kho cov khoom sib nqus, thiab cov hlau nplaum tsim.
