Cov txheej txheem:
- Dab tsi yog cov khoom hauv ferromagnetic?
- Yuav ua li cas cov domains nyob rau hauv unmagnetized hlau?
- Yuav ua li cas txhawm rau tsim cov npe sib nqus?
- Thaum sib nqus sib nqus hauv cov khoom tuaj yeem ua raws?
Video: Nyob rau hauv cov ntaub ntawv tsis muaj hlau nplaum cov domains yog ____ raws li?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Nyob rau hauv ib yam khoom uas tsis muaj hlau nplaum ferromagnetic, cov thawj yog me me thiab randomly taw qhia. Nyob rau hauv teb rau sab nraud magnetic teb, cov thawj yuav loj hlob mus rau millimeter loj, aligning lawv tus kheej raws li qhia nyob rau hauv ib feem (b) ntawm daim duab thib ob.
Dab tsi yog cov khoom hauv ferromagnetic?
Ferromagnetic domains yog thaj chaw me me hauv ferromagnetic cov ntaub ntawv nyob rau hauv uas tag nrho cov magnetic dipoles yog aligned parallel rau ib leeg.
Yuav ua li cas cov domains nyob rau hauv unmagnetized hlau?
Nyob rau hauv thaj chaw, cov ncej ntawm tus kheej atoms tau ua raws. Txhua lub atom ua zoo li cov hlau nplaum me me. Domains yog me me thiab randomly oriented nyob rau hauv ib qho khoom siv ferromagnetic tsis muaj hlau nplaum.… (a) Ib daim hlau uas tsis muaj hlau nplaum (lossis lwm yam khoom siv ferromagnetic) muaj qhov sib txawv ntawm qhov chaw.
Yuav ua li cas txhawm rau tsim cov npe sib nqus?
(Thaum atoms muaj electrons uas orbit los yog kiv nyob rau hauv feem ntau ib qho kev taw qhia, cov nyhuv net yog ib qho atomic hlau nplaum hu ua dipole.) Yuav ua li cas dlhos tsim magnetic domains? ( Cov atoms ntawm cov khoom sib nqus yog "atomic hlau nplaum" lossis dipolesthiab, thaum sib raug zoo, tsim cov khoom sib nqus.)
Thaum sib nqus sib nqus hauv cov khoom tuaj yeem ua raws?
Txawm li cas los xij, thaum muaj sab nraud magnetic teb yog tam sim no, cov thawj yuav tig thiab ua raws li cov hlau nplaum sab nraud. Thaum tag nrho lossis feem ntau ntawm cov thawj tswj hwm nyob rau hauv tib txoj kev, tag nrho cov khoom yuav magnetized nyob rau hauv cov kev taw qhia thiab ua ib tug hlau nplaum.
Pom zoo:
Puas yog cov hlau nplaum ua los ntawm cov hlau nplaum?
Natural magnets muaj nyob rau hauv lub ntiaj teb thiab yog nplua nuj nyob rau hauv ib tug hlau ntxhia hu ua magnetite. Cov hlau nplaum uas tsim los ntawm tib neeg tau tsim nyob rau hauv ib lub chaw sim los ntawm kev noj cov hlau alloys thiab ua lawv kom haum rau tus nqi .
Puas yog cov hlau nplaum muaj zog dua li cov hlau nplaum ruaj khov?
Electromagnets muaj txiaj ntsig tseem ceeb ntawm kev tswj hwm lawv lub zog sib nqus - ob qho tib si los ntawm kev tig cov hlau nplaum rau lossis tawm thiab los ntawm kev kho qhov tam sim no. Lawv kuj tseem muaj rub lub zog ntau dua li cov hlau nplaum ruaj khov Qee qhov kev kwv yees tso cov hlau nplaum loj tshaj plaws ntawm 20 npaug zog dua li cov hlau nplaum ruaj khov .
Koj puas tuaj yeem khov cov nplaum nplaum nplaum nplaum nplaum?
Yog, koj tuaj yeem khov cov nplaum nplaum nplaum nplaum rau ib ncig ntawm 3 lub hlis. Koj tuaj yeem khov cov nplaum nplaum nplaum nplaum nplaum uas tsis tau ci los yog ci uas txhais tau tias koj tuaj yeem khov cov khoom seem ntawm cov paj npleg.
Nyob rau hauv cov ntaub ntawv ntsig txog cov ntaub ntawv yog pab pawg rau?
Data record Yuav ua li cas yog ib pab pawg ntawm cov teb nyob rau hauv ib tug database hu ua? A cov ntaub ntawv muaj cov teb, nrog rau txhua daim teb piav qhia tus cwj pwm ntawm qhov chaw. Cov ntaub ntawv - ib pawg ntawm cov ntaub ntawv ntsig txog.
Vim li cas ib yam khoom hlau tsis muaj hlau nplaum nyiam rau cov hlau nplaum?
Thaum cov hlau nplaum raug coj los ze rau cov khoom siv ferromagnetic yav dhau los uas tsis muaj hlau nplaum, nws ua rau cov hlau nplaum hauv zos ntawm cov khoom uas tsis zoo li cov ncej ze tshaj, ib yam li hauv. unmagnetized khoom rau cov hlau nplaum raws li daim duab hauv .
