Video: Cov qauv dab tsi thaum koj nchuav hlau filings nyob ib ncig ntawm cov hlau nplaum?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum twg hlau ntaub ntawv yog sprinkled nyob ib ncig ntawm ib tug hlau nplaum , ib daim duab ntawm Sib nqus teb raug ntes. Vim li cas qhov no tshwm sim? Tsis tas li ntawd, cov no hlau ntaub ntawv cais ua kom pom tseeb qauv ntawm kab.
Ib yam li ntawd, koj tuaj yeem nug, yuav ua li cas thaum koj nchuav hlau filings nyob ib ncig ntawm cov hlau nplaum?
Thaum lub hlau ntaub ntawv yog sprinkled , cov uas ze heev rau lub hlau nplaum , qhov twg Sib nqus lub zog yog lub zog tshaj, yuav cling rau hlau nplaum . Cov cov ntaub ntawv deb me ntsis deb, qhov twg Sib nqus quab yuam tsawg zog, yuav dlhos lawv tus kheej nrog cov Sib nqus flux kab, tab sis lawv yuav tsis raug rub mus rau cling hlau nplaum.
Tsis tas li ntawd, koj yuav piav qhia li cas tus qauv tsim los ntawm cov ntaub ntawv hlau? Magnet attracts hlau nplaum xws li hlau . Thaum twg hlau fillings muab tso rau hauv magnetic teb ncig bar hlau nplaum, a qauv yog tsim los ntawm cov ntaub ntawv hlau nyob ib ncig ntawm ib lub hlau nplaum ua los ntawm cov kab tawm sab nraud los ntawm North (N) thiab S (S) ncej. Cov kab nkhaus mus rau tus ncej opposite.
Kuj kom paub, qhov twg ntawm cov hlau nplaum nyiam cov ntaub ntawv hlau ntau dua?
Magnet attracts hlau thiab cov hlau nplaum tuaj yeem ua los ntawm ntau yam ntaub ntawv xws li ntawv. Thaum twg hlau ntaub ntawv tau kis thoob lub hlau nplaum , koj tuaj yeem pom cov qauv ntawm lub Sib nqus zog or Sib nqus teb. Muaj ob tug ncej hauv a hlau nplaum : sab qaum teb (N) thiab sab qab teb (S). Cov ncej nyiam.
Vim li cas hlau filings yog attracted rau hlau nplaum?
Magnets nyiam hlau vim muaj kev cuam tshuam ntawm lawv cov magnetic teb rau lub hlau . Thaum raug cov magnetic teb, cov atoms pib dlhos lawv cov electrons nrog cov ndlwg ntawm magnetic teb, uas ua rau lub hlau magnetized ib yam nkaus. Qhov no, nyob rau hauv lem, tsim ib tug kev nyiam nruab nrab ntawm ob yam khoom magnetized.
Pom zoo:
Dab tsi yog cov hlau nplaum uas ua los ntawm qhov kev npaj ntawm electrons yog dab tsi?
Electrons yog teem rau hauv plhaub thiab orbitals nyob rau hauv ib tug atom. Yog hais tias lawv sau lub orbitals kom muaj ntau spin taw tes rau hauv qab (los yog vice versa), txhua atom yuav ua zoo li ib tug me me hlau nplaum. Thaum ib daim ntawm cov hlau tsis muaj hlau nplaum (lossis lwm yam khoom siv ferromagnetic) raug rau sab nraud magnetic teb, ob yam tshwm sim
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