Yuav ua li cas yog ib daim hlau uas tsis muaj hlau nplaum txawv ntawm tib daim hlau thaum nws yog hlau nplaum? Magnetic domains yog random oriented nyob rau hauv unmagnetizedhlau, raws li nyob rau hauv magnetized hlau. … -Lub North Ncej ntawm ib tug hlau nplaum yog lub npe tom qab "North nrhiav", ces ib tug North Ncej ntsiab lus North.
Dab tsi ua rau hlau nplaum sib txawv ntawm cov hlau tsis muaj hlau nplaum?
Ntawm qib micro, qhov txawv ntawm tus ntsia hlau tsis muaj hlau nplaum thiab cov ntsia hlau hlau nplaum yog dab tsi? Nyob rau hauv tus ntsia thawv unmagnetized, cov sib nqus domains muaj ib tug random orientation kom cov net magnetism ntxiv rau xoom. Hauv cov ntsia hlau hlau nplaum, ntau qhov sib nqus sib xyaw ua ke.
Yuav ua li cas thiaj tsis muaj hlau nplaum hlau nplaum?
Nyob rau hauv cov hlau tsis muaj hlau, cov thawj yog taw rau txhua qhov kev qhia. Thaum koj stroke ib lub hlau nplaum ntau zaus hla cov hlau hauv ib qho kev taw qhia, cov thawj kab nyob rau hauv tib txoj kev. Cov hlau dhau los ua hlau nplaum.
Ib yam tsis muaj hlau nplaum yog dab tsi?
Cov hlau atoms nyob rau hauv ib qho hlau tsis muaj hlau nplaum yog randomly oriented, whereas nyob rau hauv ib tug magnetized bar lawv yog raws li nyob rau hauv lawv sab qaum teb ncej taw rau tib txoj kev. Lub peev xwm ntawm hlau atoms kom nyob twj ywm raws li txoj kev no yog lub luag haujlwm rau cov khoom sib nqus ntawm hlau.
Puas yog Unmagnetized hlau magnetic?
Tsuas yog qee yam khoom siv, xws li hlau, cob alt, npib tsib xee, thiab gadolinium, pom muaj zog sib nqus. Cov ntaub ntawv no hu ua ferromagnetic, tom qab lo lus Latin rau hlau, ferrum. … Ib daim hlau uas tsis muaj hlau nplaum yog muab tso rau ntawm ob lub hlau nplaum, ua kom sov, thiab tom qab ntawd txias, lossis tsuas yog nias thaum txias.
