{"id":1715,"date":"2020-08-13T11:32:47","date_gmt":"2020-08-13T08:32:47","guid":{"rendered":"https:\/\/estmagnet.ee\/magneettikentta\/"},"modified":"2021-05-19T09:06:42","modified_gmt":"2021-05-19T06:06:42","slug":"magneettikentta","status":"publish","type":"post","link":"https:\/\/estmagnet.ee\/fi\/magneettikentta\/","title":{"rendered":"Magneettikentt\u00e4"},"content":{"rendered":"\n

Magneetti on kappale tai materiaali, jolla on magneettikentt\u00e4. Magneettikentt\u00e4 on n\u00e4kym\u00e4t\u00f6n, kuitenkin se aiheuttaa metallien, kuten raudan vet\u00e4ytymisen ja muiden magneettien vet\u00e4ytymisen tai ty\u00f6ntymisen kohtiosta riippuen.<\/p>\n\n

Yleens\u00e4 magneetilla tarkoitetaan kestomagneettia, joka on valmistettu magnetoidusta materiaalista. Sellaisia materiaaleja kutsutaan ferromagneettisiksi, esimerkkej\u00e4 niist\u00e4 ovat rauta, nikkeli, koboltti, neodyymi. N\u00e4it\u00e4 aineita magneetti vet\u00e4\u00e4 puoleensa my\u00f6s silloin, kun niit\u00e4 ei ole magnetoitu.<\/p>\n\n

Magneettikent\u00e4ksi kutsutaan liikkuvien varauksisten kappaleiden v\u00e4lill\u00e4 vaikuttavan voiman kentt\u00e4\u00e4.<\/p>\n\n

Magneettikentt\u00e4\u00e4 aiheuttaa s\u00e4hk\u00f6kent\u00e4n muuttuminen.<\/p>\n\n

Kestomagneetti on kappale, jolla on magneettikentt\u00e4 my\u00f6s s\u00e4hk\u00f6virran puuttuessa. Kestomagneetin ominaisuuksia m\u00e4\u00e4r\u00e4\u00e4 elektronien luonteenomainen magneettikentt\u00e4. Kestomagneetissa on kaksi aluetta: pohjois- ja etel\u00e4kohtio.<\/p>\n\n

Magneettien ensimm\u00e4isi\u00e4 k\u00e4ytt\u00f6kohteita ovat kompassit, jotka hy\u00f6dynt\u00e4v\u00e4t maapallon magneettikentt\u00e4\u00e4.<\/p>\n\n

S\u00e4hk\u00f6moottoreissa ja generaattoreissa k\u00e4ytet\u00e4\u00e4n kesto- ja s\u00e4hk\u00f6magneettien yhdistelm\u00e4\u00e4.<\/p>\n\n

Magneetit ovat t\u00e4rkeit\u00e4 my\u00f6s kaiuttimissa.<\/p>\n\n

Magneetteja k\u00e4ytet\u00e4\u00e4n temppujen tekemiseksi ja viihteess\u00e4.<\/p>\n\n

Neodyymi (Nd) on alkuaine, jonka j\u00e4rjestysnumero on 60 ja joka on harvinainen maametalli.<\/p>\n\n

Se esiintyy luonnossa 7 stabiilina isotooppina. Niiden massaluvut ovat 142, 143, 144, 145, 146, 148 ja 150.<\/p>\n\n

Ominaisuuksiltaan neodyymi on lantanoidi. Sen tiheys normaalioloissa on 6,8 g\/cm\u00b3. Neodyymi sulaa 1024 celsiusasteessa ja sen kiehumisl\u00e4mp\u00f6tila on 3100 \u00b0C.<\/p>\n","protected":false},"excerpt":{"rendered":"

Magneetti on kappale tai materiaali, jolla on magneettikentt\u00e4. Magneettikentt\u00e4 on n\u00e4kym\u00e4t\u00f6n, kuitenkin se aiheuttaa metallien, kuten raudan vet\u00e4ytymisen ja muiden magneettien vet\u00e4ytymisen tai ty\u00f6ntymisen kohtiosta riippuen. Yleens\u00e4 magneetilla tarkoitetaan kestomagneettia, joka on valmistettu magnetoidusta materiaalista. Sellaisia materiaaleja kutsutaan ferromagneettisiksi, esimerkkej\u00e4 niist\u00e4 ovat rauta, nikkeli, koboltti, neodyymi. N\u00e4it\u00e4 aineita magneetti vet\u00e4\u00e4 puoleensa my\u00f6s silloin, kun niit\u00e4 […]\n","protected":false},"author":3,"featured_media":552,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[425],"tags":[],"class_list":["post-1715","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-turvallisuus"],"yoast_head":"\nMagneettikentt\u00e4 - EstMagnet OÜ<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/estmagnet.ee\/fi\/magneettikentta\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Magneettikentt\u00e4 - EstMagnet OÜ\" \/>\n<meta property=\"og:description\" content=\"Magneetti on kappale tai materiaali, jolla on magneettikentt\u00e4. Magneettikentt\u00e4 on n\u00e4kym\u00e4t\u00f6n, kuitenkin se aiheuttaa metallien, kuten raudan vet\u00e4ytymisen ja muiden magneettien vet\u00e4ytymisen tai ty\u00f6ntymisen kohtiosta riippuen. Yleens\u00e4 magneetilla tarkoitetaan kestomagneettia, joka on valmistettu magnetoidusta materiaalista. Sellaisia materiaaleja kutsutaan ferromagneettisiksi, esimerkkej\u00e4 niist\u00e4 ovat rauta, nikkeli, koboltti, neodyymi. 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