Ike Magnetik: Ihe Na-adọrọ Mmasị Dị n'azụ Ihe Ndị Dị Ebube nke Fizik
Magnetism bụ otu n'ime ihe ndị kacha adọrọ mmasị n'okike ma nwee ọtụtụ ojiji na ndụ kwa ụbọchị. Site na kompas nke na-enyere ndị nchọpụta aka ịchọta ụzọ ha ruo na teknụzụ dị elu dị ka imaging magnetik resonance (MRI), magnetism arụọla ọrụ dị mkpa n'ọtụtụ akụkụ nke ndụ mmadụ. Isiokwu a ga-akọwa echiche bụ isi nke magnetism, akụkọ ihe mere eme nke nchọpụta ya, ojiji ya na ndụ kwa ụbọchị, na otu o si arụ ọrụ na mmetụta ya na ụwa nke oge a.
Echiche Dị Mkpa nke Ike Magnetik
Nkọwa na Njirimara nke Magnet
Magnet bụ ihe nwere ike ịdọta ihe ferromagnetic dị ka ígwè, nickel, na cobalt. Ihe ndị bụ isi nke magnet gụnyere ogwe ugwu na ndịda, ebe ogwe ndị dị iche iche na-adọta ibe ha, ebe dịka ogwe ndị ahụ na-achụpụ ibe ha. Nke a bụ isi ihe dị mkpa nke na-akọwa otú magnet si arụ ọrụ n'ọtụtụ ngwa.
Enwere ike kewaa magnet n'ime ụdị abụọ dị iche iche: magnet eke na magnet eke. A na-ahụ magnet eke, dị ka lodestone ma ọ bụ magnetite, n'okike, ebe a na-emepụta magnet eke site na ịgwọ ụfọdụ ihe iji mepụta ubi magnet.
Ọdụ Igwe Magnetik
Oghere magnetik bụ oghere gbara magnet gburugburu ebe a na-enwe ike ịnweta ike magnetik. A na-egosi ubi a site na ahịrị ike magnetik nke na-apụ na ogidi ugwu nke magnet ahụ wee banye ọzọ na ogidi ndịda. Ike nke ogidi magnetik dabere na anya site na magnet na ike nke magnet ahụ n'onwe ya.
Iwu Ndị Dị Mkpa
Iwu bụ isi nke na-achịkwa ike ndọta bụ iwu Coulomb nke ndọta, nke na-ekwu na ike dị n'etiti ogwe ndọta abụọ dabara kpọmkwem na mmepụta nke ike nke ogwe abụọ ahụ ma na-agbanwe agbanwe na square nke anya dị n'etiti ha. Na mgbakwunye, iwu Ampère na iwu Faraday dịkwa mkpa n'ịkọwa ihe ndị na-eme ka elektrọnik dị.
Akụkọ ihe mere eme nke nchọpụta nke magnet
Akụkọ ihe mere eme nke magnetism malitere kemgbe ọtụtụ puku afọ. Ojiji mbụ nke magnet nwere ike ịpụta na China na Gris oge ochie. Ndị China jiri lodestone mepụta kompas dị mfe iji nyere aka ịnyagharị n'oké osimiri. Nchọpụta a nwere mmetụta dị ukwuu na nchọpụta na azụmaahịa ruo ọtụtụ narị afọ.
Na narị afọ nke 19, ndị ọkà mmụta sayensị dịka Hans Christian Ørsted, André-Marie Ampère, na Michael Faraday mere nchọpụta dị mkpa nke jikọtara ọkụ eletrik na magnetism. Ørsted chọpụtara na ọkụ eletrik nwere ike imepụta ubi magnetism, ebe Ampère gbasaara nghọta anyị gbasara mmekọrịta dị n'etiti ọkụ eletrik na magnetism. N'aka nke ọzọ, Faraday chọpụtara induction electromagnetic, nke bụ ntọala maka ọtụtụ ngwaọrụ eletriki ọgbara ọhụrụ.
Ngwa nke Ike Magnetik na Ndụ Kwa Ụbọchị
Ojiji na Eletrọniki
Otu n'ime ihe ndị a na-ejikarị eme ike ndọta bụ n'ihe gbasara eletrọniki. A na-eji magnet eme ihe n'ọtụtụ ngwaọrụ dị iche iche, gụnyere igwe okwu, igwe okwu, na moto eletriki. Dịka ọmụmaatụ, n'ime igwe okwu, magnet na-arụ ọrụ na njikọ ya na coil iji gbanwee akara eletriki ka ọ bụrụ ebili mmiri ụda.
Teknụzụ Ahụike
Magnetism na-arụkwa ọrụ dị mkpa na teknụzụ ahụike, ọkachasị na onyonyo magnetik resonance (MRI). MRI bụ usoro onyonyo nke na-eji ike magnetik na ebili redio mepụta onyonyo zuru ezu nke akụkụ ahụ na nhazi dị n'ime ahụ. MRI aghọwo ngwa dị mkpa na nchọpụta ahụike n'ihi ikike ya inye onyonyo doro anya nke ukwuu na-ejighị X-ray ma ọ bụ radieshon ionizing ndị ọzọ.
Ntugharị na Ụgbọ njem
A na-ejikwa magnets eme ihe n'usoro njem ọgbara ọhụrụ. Sistemụ Ọnọdụ Ụwa (GPS) na-eji satịlaịtị ekpebi ebe ọ dị site na iji ebe ndọta ụwa. Na mgbakwunye, ụgbọ oloko Maglev (magnetic levitation) na-eji ebe ndọta ebuli ma na-akwali ụgbọ oloko na-enweghị mmetụ anụ ahụ na okporo ụzọ, na-eme ka ọsọ dị elu na njem dị nro.
Data Penyimpanan
Na kọmputa na teknụzụ ozi, magnetism na-arụ ọrụ dị oke mkpa na nchekwa data. Draịvụ diski ike (HDDs) bụ ihe atụ kachasị mma, ebe a na-echekwa data n'ụdị magnetism na efere ígwè. Mmepe teknụzụ emeela ka nchekwa data buru ibu ma dị ngwa site n'iji ụkpụrụ magnetism eme ihe.
Mkpa kwa ụbọchị
N'ụlọ, a na-eji magnet eme ihe kwa ụbọchị dịka imechi ọnụ ụzọ friji, bra na bọtịnụ akpa, na ihe egwuregwu ụmụaka. Ojiji ndị a na-egosi ojiji bara uru na nke dị iche iche nke magnet na ndụ kwa ụbọchị.
Otu Ike Magnetik Si Arụ Ọrụ
Mmekọrịta nke Magnet na Ihe
Igwe ndọta na-emekọrịta ihe na ihe site n'ịmepụta ike mara mma ma ọ bụ nke na-asọ oyi. Mgbe e tinyere ihe magnetized (dị ka ígwè) nso ebe magnetized dị, ọ na-eme usoro a na-akpọ magnetization induction, ebe ọ na-aghọ magnetized nwa oge. Usoro a gụnyere nhazi nke ngalaba magnetism n'ime ihe ahụ.
Elektrọmagnet
Igwe eletriki bụ ụdị magnet nke enwere ike ijikwa ike ndọta site na ịgbanwe ọkụ eletrik na-agafe na waya. Igwe eletriki nwere ọtụtụ ojiji, gụnyere ngwaọrụ ahụike, moto eletriki, na relay. Otu n'ime uru ha bụ ikike ijikwa oghere ndọta kpọmkwem ma gbanwee ike ya dịka ọ dị mkpa.
Magnet Na-adịgide Adịgide
Magnet na-adịgide adịgide bụ magnet nke na-ejigide ubi magnet ya ruo ogologo oge. Ihe ndị dị ka alnico, neodymium, na samarium-cobalt bụ ụfọdụ ihe atụ nke magnet na-adịgide adịgide a na-ejikarị eme ihe. Ike nke magnet na-adịgide adịgide dabere na ihe e ji mee ya na usoro mmepụta ya.
Mmetụta na Ihe Ịma Aka
Mmetụta dị mma
Ojiji magnetism enyela ọtụtụ uru nye ụmụ mmadụ. Site na enyemaka ịnyagharị ruo na ngwaọrụ eletrọnịkị dị elu ruo na teknụzụ ahụike na-azọpụta ndụ, magnet emeela ka ndụ anyị ka mma nke ukwuu. Ọzọkwa, nchọpụta na mmepe n'ọhịa magnetism na-aga n'ihu na-emepe ohere ọhụrụ na teknụzụ na ihe ọhụrụ.
Ihe ịma aka na Mmachi
Agbanyeghị, ojiji nke magnet na-echekwa ọtụtụ ihe ịma aka ihu. Ihe eji eme magnet, ọkachasị magnet ụwa dị ụkọ, nwere ike ịdị ụkọ ma dị oke ọnụ. Ọzọkwa, njikwa ihe mkpofu magnet na mmetụta gburugburu ebe obibi nke usoro mmepụta magnet bụkwa nchegbu dị oke njọ.
Mmechi
Magnetism bụ ihe dị mkpa ma gbasaa ebe niile, yana ojiji ya gbasara ọtụtụ akụkụ nke ndụ nke oge a. Site na nchọpụta mbụ nke magnet eke ruo na mmepe nke teknụzụ dị elu, magnet arụwo ọrụ a na-apụghị ịgbanwe agbanwe. Site n'ịghọta otú magnetism si arụ ọrụ na ojiji ya, anyị nwere ike ịghọta ihe okike a nke ọma ma nọgide na-enyocha ikike magnetism a na-ejighị eme ihe.
