He aha nā ʻokoʻa ma waena o ke kaapuni magnetic a me nā ʻano kino o ka magnet ikaika

ʻO nā ʻokoʻa nui ma waena o ke kaapuni magnetic a me nā waiwai kino kaapuni penei:
(1) He mau mea conductive maikaʻi ma ke ʻano, a aia kekahi mau mea e hoʻokaʻawale i kēia manawa. No ka laʻana, ʻo ka resistivity o ke keleawe he 1.69 × 10-2qmm2 / m, ʻoiai ʻo ka lāʻau lapaʻau ma kahi o 10 mau manawa. Akā a hiki i kēia manawa, ʻaʻohe mea i ʻike ʻia e hoʻokaʻawale i ka flux magnetic. ʻO Bismuth ka haʻahaʻa haʻahaʻa loa, ʻo ia ka 0. 99982μ. ʻO ka permeability o ka ea he 1.000038 μ. No laila hiki ke manaʻo ʻia ka ea me ka haʻahaʻa haʻahaʻa loa. ʻO nā mea ferromagnetic maikaʻi loa he pili pili i ka 10 a hiki i ke ono o ka mana.

(2) ʻO kēia ke kahe ʻana o nā ʻāpana i hoʻopaʻa ʻia i loko o ka conductor. Ma muli o ke kū ʻana o ka conductor, hana ka mana uila i nā ʻāpana i hoʻopaʻa ʻia a hoʻopau i ka ikehu, a ua hoʻololi ʻia ka nalowale o ka mana i ka ikehu wela. ʻAʻole hōʻike ka flux magnetic i ka neʻe ʻana o kekahi ʻāpana, ʻaʻole ia e hōʻike i ka nalowale o ka mana, no laila ʻaʻole pono kēia hoʻohālikelike. He kaʻawale loa ke kaapuni uila a me ke kaapuni magnetic, me kēlā me kēia me kona pūʻolo i loko ponoʻī. Nalo, no laila, ʻoʻopa ka hoʻohālikelike. ʻO ke kaapuni a me ke kaʻapuni magnetic he mea kūʻokoʻa, kēlā me kēia me kona ʻano kino ponoʻī ʻole.

ʻOi aku ka maʻemaʻe o nā kaapuni magnetic:
(1) ʻAʻole kaʻapuni kaʻapuni i ka kaapuni magnetic, aia ka flux ma nā wahi āpau.
(3) ʻaneʻane ʻaneʻane laina ʻole nā ​​kaapuni mākēneki. ʻO ka hoʻokuʻu ʻole ʻana o ka mea ferromagnetic he nonlinear, he linear ka hoʻolele ea. ʻO ke kānāwai ohm kaapuni magnetic a me nā manaʻo hōʻole i helu ʻia ma luna nei he ʻoiaʻiʻo wale nō ma ka laina laina. No laila, ma ka hoʻolālā hana, hoʻohana mau ʻia ka pihi bH e helu i ke kiko hana.
(2) No ka loaʻa ʻole o nā mea magnetika ʻole, ʻaʻole i hoʻopaʻa ʻia ka flux magnetic. ʻO kahi hapa wale nō o ka mea hoʻoheheʻe magnetic e kahe ana ma o ke kaapuni magnetic i ʻōlelo ʻia, a ʻo ke koena e hoʻopuehu ʻia i loko o ke ākea a puni ka kaapuni magnetic, i kapa ʻia ka leakage magnetic. He paʻakikī ka helu ʻana a me ke ana ʻana o kēia leakage flux magnetic, akā ʻaʻole hiki ke mālama ʻia.