Magnetite thiab Phenomenon ntawm Magnetism Sib nqus pob zeb, hu ua magnetite lossis lodestone, tau tshawb pom los ntawm cov neeg Greek thaum ub. Lawv tau tshawb pom nyob rau hauv thaj av ntawm Asia Minor hu ua Magnesia.
Magnetism nyob qhov twg?
Npaj sib nqus ntawm lub compass kab nrog Lub ntiaj teb cov hlau nplaum. Sab qaum teb kawg ntawm ib qho hlau nplaum taw qhia rau ntawm tus ncej hlau nplaum sab qaum teb. Lub ntiaj teb magnetic teb dominates ib cheeb tsam hu ua magnetosphere, uas qhwv ib ncig ntawm lub ntiaj chaw thiab nws cov huab cua.
Leej twg pom cov hlau nplaum?
Nikola Tesla, tau sim ntawm cov tshuab hluav taws xob thiab nws pom qhov sib nqus sib nqus hauv xyoo 1883, uas yog lub hauv paus ntsiab lus ntawm kev hloov tam sim no.
Puas yog keeb kwm ntawm kev sib nqus ntawm cov hlau nplaum?
Magnetism pib los ntawm lub kiv thiab orbital magnetic lub sij hawm ntawm ib tug electron. Lub orbital motion ntawm ib tug electron nyob ib ncig ntawm lub nucleus yog analogous rau tam sim no nyob rau hauv ib lub voj ntawm hlau.
7 hom hlau nplaum yog dab tsi?
Dab tsi yog 7 Hom Magnets
- Neodymium hlau boron (NdFeB) - Cov hlau nplaum ruaj khov.
- Samarium cob alt (SmCo) - Cov hlau nplaum ruaj khov.
- Alnico - Cov hlau nplaum ruaj khov.
- Ceramic lossis ferrite hlau nplaum - Cov hlau nplaum tas mus li.
- Cov hlau nplaum ib ntus - magnetized nyob rau hauv lub xub ntiag ntawm magnetic teb.
