Ib yam khoom tuaj yeem ua tau magnetized yog tias tag nrho nws cov khoom sib nqus sib nqus hauv cov ntaub ntawv feem ntau cov khoom siv me me, nyob ib ncig ntawm 10 - 4 - 10-6 m. https://en.wikipedia.org › wiki › Magnetic_domain
Magnetic domain - Wikipedia
tuaj yeem ua raws. … Tsuas yog qee yam khoom siv, hu ua ferromagnetic cov ntaub ntawv, tuaj yeem ua hlau nplaum. Lawv suav nrog hlau, cob alt, thiab npib tsib xee. Cov khoom uas tau raug hlau nplaum yuav dhau los ua cov hlau nplaum ib ntus lossis ruaj khov.
Cov ntaub ntawv dab tsi tsis tuaj yeem sib nqus?
Cov ntaub ntawv uas tsis nyiam los ntawm cov hlau nplaum yog hu ua cov khoom tsis sib nqus. Txhua yam khoom uas tsis yog hlau, npib tsib xee, thiab Cob altyog cov khoom tsis sib nqus xws li yas, roj hmab, dej, thiab lwm yam yog cov khoom tsis sib nqus. Cov khoom tsis sib nqus tsis tuaj yeem sib nqus.
Txhua cov ntaub ntawv puas tuaj yeem ua hlau nplaum?
cov khoom sib nqus yog ib txwm ua los ntawm hlau, tab sis tsis yog txhua yam hlau yog hlau nplaum. Hlau yog hlau nplaum, yog li txhua yam hlau nrog hlau nyob rau hauv nws yuav raug attracted rau ib tug hlau nplaum. Hlau muaj hlau, yog li daim ntawv hlau steel yuav raug nyiam rau cov hlau nplaum ib yam nkaus. Feem ntau lwm yam hlau, piv txwv li txhuas, tooj liab thiab kub, tsis yog hlau nplaum.
Cov ntaub ntawv tsis sib nqus puas tuaj yeem ua tau hlau nplaum?
Ntawm 91 cov hlau paub, tsuas yog peb qhov sib nqus tiag tiag ntawm chav sov: hlau, cob alt thiab nickel. Thaum cov buckyballs sib xyaw cov hlau, qee qhovelectrons raug tshem tawm - tso cai rau cov hlau kov yeej Stoner Criterion thiab ua tiav cov hlau nplaum. …
Koj puas tuaj yeem tsim tau dab tsi?
Magnetism tshwm sim ntawm qib subatomic tab sis tuaj yeem pom nws tus kheej ntawm cov nplai loj heev. Ferromagnetic cov ntaub ntawv, uas muaj xws li hlau, cob alt thiab npib tsib xee, yog cov ntaub ntawv uas nthuav tawm cov khoom sib nqus. … Koj tuaj yeem tsim cov khoom no thiab lwm yam khoom ferromagnetic los ntawm kev nthuav tawm lawv mus rau qhov chaw sib nqus uas twb muaj lawm.
