Video: Yuav ua li cas magnetic domains aligned?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A sib nqus domain yog cheeb tsam uas lub Sib nqus teb ntawm atoms yog pawg ua ke thiab ua ke . Tab sis, thaum cov hlau ua magnetized, uas yog dab tsi tshwm sim thaum nws yog rubbed nrog ib tug muaj zog hlau nplaum , txhua yam zoo li Sib nqus cov ncej lined thiab taw tes rau tib qho kev taw qhia. Cov hlau ua ib hlau nplaum.
Nyob rau hauv no, yuav ua li cas tshwm sim thaum lub domains yog aligned?
Thaum tag nrho los yog feem ntau ntawm cov domains yog aligned 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. Cov txheej txheem ntawm kev siv ib qho chaw sib nqus los ua kom sib nqus lwm yam khoom hu ua induction.
Ib tug kuj yuav nug, dab tsi yog magnetic domain theory? Cov domain txoj kev xav hais tias hauv ib hlau nplaum muaj cov cheeb tsam me me uas cov Sib nqus kev taw qhia ntawm tag nrho cov atoms yog nyob rau hauv tib cov lus qhia. Cov cheeb tsam no hu ua thaj chaw . Hauv ib sau npe , kev sib tw ntawm cov Sib nqus kev taw qhia yog tib yam.
Ib yam li ntawd, koj tuaj yeem nug, qhov kev taw qhia dab tsi ua rau cov hlau nplaum taw tes rau hauv cov hlau nplaum?
A sib nqus domain yog ib cheeb tsam hauv ib Sib nqus cov khoom nyob rau hauv uas lub magnetization yog nyob rau hauv ib tug uniform kev taw qhia . Qhov no txhais tau tias tus kheej Sib nqus lub sij hawm ntawm lub atoms yog dlhos ib leeg thiab lawv taw tes hauv ib yam kev taw qhia.
Qhov piv txwv ntawm magnetic domain yog dab tsi?
Ib piv txwv ntawm a sib nqus domain yog: ib nucleus. Yog ib lub bar hlau nplaum raug tshem tawm hauv qhov chaw thiab lwm qhov bar ntawm cov khoom tsis sib nqus tau coj los ze rau nws, yuav ua li cas?
Pom zoo:
Dab tsi yog qhov scientific domains?
Raws li cov txheej txheem no, tsob ntoo ntawm lub neej muaj peb lub npe: Archaea, Kab mob, thiab Eukarya. Thawj ob yog tag nrho cov kab mob prokaryotic, los yog ib leeg-celled kab mob uas lawv cov hlwb tsis muaj nucleus
Yuav ua li cas yog tus qauv ntawm cov magnetic teb kab nyob ib ncig ntawm ib tug ncaj conductor nqa tam sim no?
Qhov xwm txheej ntawm cov kab hlau nplaum nyob ib ncig ntawm astright tam sim no nqa tus neeg xyuas pib yog concentric voj voog withcentre ntawm lub axis ntawm tus neeg xyuas pib. Ces koj cov ntiv tes yuav qhwv ib ncig ntawm tus neeg xyuas pib nyob rau hauv cov kev taw qhia ntawm lub teb kab ntawm lub magnetic teb? (Saib daim duab 1)?.Qhov no hu ua txoj cai ntiv tes xoo
Yuav ua li cas koj nrhiav tau ib tug magnetic teb nrog ib tug compass?
Magnetic fields tso lub plotting compass ze ntawm cov hlau nplaum ntawm ib daim ntawv. kos cov kev taw qhia ntawm lub tshuab raj lub ntsiab lus. txav lub plotting compass mus rau ntau txoj haujlwm sib nqus hauv qhov chaw sib nqus, kos lub koob taw qhia txhua zaus. koom nrog cov ntsiab lus los qhia cov kab teb
Yuav ua li cas tshwm sim thaum ib tug tam sim no nqa coil muab tso rau hauv ib tug magnetic teb?
Yog tias tus neeg nqa khoom nqa tam sim no tau muab tso rau hauv qhov chaw sib nqus, nws ntsib lub zog Lorentz (tshwj tsis yog lub kaum sab xis ntawm qhov ntws ntawm tam sim no thiab cov kab hlau nplaum yog 0 °)
Dab tsi yog domains hauv magnetism?
Lub magnetic domain yog ib cheeb tsam nyob rau hauv cov khoom siv magnetic nyob rau hauv uas lub magnetization yog inauniform kev taw qhia. Qhov no txhais tau hais tias tus kheej magneticmoments ntawm cov atoms yog ua ke nrog ib leeg thiab lawv taw tes rau tib qho kev taw qhia. Cov no yog ferromagnetic, ferrimagnetic thiab antiferromagnetic cov ntaub ntawv