Cov hlau nplaum yog cov khoom siv hauv peb lub neej, thiab lawv muaj zog sib nqus. Yog li ntawd, lub zog magnetic los ntawm qhov twg? Hnub no, cia peb tham txog qhov teeb meem no.
Ua ntej, peb yuav tsum to taub qhov muaj pes tsawg leeg ntawm cov hlau nplaum. Cov hlau nplaum feem ntau yog tsim los ntawm cov hlau xws li hlau, nickel, thiab cobalt. Hauv cov ntsiab lus hlau no, txhua lub atom muaj lub sijhawm sib nqus sib nqus, uas yog, nws nqa ib qho chaw sib nqus me me, thiab cov kev taw qhia ntawm qhov chaw sib nqus no yog random faib. Txawm li cas los xij, hauv cov hlau nplaum, lub sijhawm sib nqus sib nqus ntawm cov atoms sib cuam tshuam nrog ib leeg, kom lawv cov kev taw qhia magnetic teb raug teem rau tib qho kev taw qhia, tsim ib pawg nrog lub zog sib nqus, uas yog thaj chaw sib nqus.
Qhov thib ob, peb yuav tsum nkag siab txog kev tsim cov cheeb tsam sib nqus. Thaum cov hlau nplaum raug rhuab los yog muaj kev cuam tshuam, cov cheeb tsam hlau nplaum looser yuav maj mam dissipate, thiab cov pawg nrog tib cov kev taw qhia thiab muaj zog hlau nplaum yuav maj mam sib sau ua ke los tsim ib cheeb tsam sib nqus loj. Cov txheej txheem no hu ua magnetization. Thaum cov hlau nplaum yog magnetized, cov cheeb tsam sib nqus yuav nyob twj ywm tsis hloov, yog li tuav lub zog sib nqus, uas yog, sib nqus quab yuam.
Thaum kawg, peb yuav tsum nkag siab qhov xwm txheej ntawm lub zog sib nqus. Magnetism yog ib qho kev sib cuam tshuam quab yuam, uas yog, ob yam khoom tsuas tuaj yeem nyiam lossis sib ntaus sib tua thaum lawv muaj chaw sib nqus txaus. Qhov loj ntawm lub zog sib nqus nyob ntawm qhov sib nqus lub zog thiab qhov nrug ntawm ob yam khoom. Qhov ze ze dua, qhov sib nqus zog ntau dua, thiab qhov loj dua qhov sib nqus lub zog, qhov sib nqus zog ntau dua.
Lub zog sib nqus ntawm cov hlau nplaum yog tsim los ntawm kev sib cuam tshuam ntawm thaj chaw sib nqus, thiab nws muaj zog txaus nyiam thiab cuam tshuam. Peb tuaj yeem siv lub zog sib nqus los tsim cov khoom siv niaj hnub xws li motors thiab electromagnets. Magnets ua lub luag haujlwm tseem ceeb hauv peb lub neej thiab kev ua haujlwm.
