Mea Hana Mana makeneka ma waena o ʻelua mau uea pololei like e lawe ana i ke au uila
ʻO ke au uila e kahe ana ma o kahi uea e hana i kahi kahua makeneti a puni ia. Inā pololei ke uea, hana nā laina kahua makeneti i kahi pōʻai, me ke uea pololei ma ke kikowaena o ka pōʻai.
Inā he ʻelua mau uea alakaʻi pololei like a hoʻokaʻawale ʻia e ka mamao L, a laila ua ʻike ʻia ke kahua makeneka i hana ʻia e ke au uila ma ke uea alakaʻi 1 ma ke uea alakaʻi 2, pēlā nō hoʻi ke kahua makeneka i hana ʻia e ke au uila ma ke uea alakaʻi 2 ma ke uea alakaʻi 1.
Ka nui o ka ikaika magnetic
ʻO ka nui o ke kahua magnetic i hana ʻia e ke au uila I1 ʻo ka mea i ʻike ʻia ma ka uea alakaʻi 2:
Hoʻopuka ke au uila I 1 i kahi ikaika magnetic ma luna o ke kaula alakaʻi 2, kahi o ka nui o ka ikaika magnetic F no ka lōʻihi o ke anakahi l ma luna o ke kaula alakaʻi 2:
Pēlā nō, hoʻopuka ke au uila I 2 i kahi ikaika magnetic ma luna o ke kaula alakaʻi 1, kahi o ka nui o ka ikaika magnetic F no ka lōʻihi o ke anakahi l ma luna o ke kaula alakaʻi 1:
Nā laʻanaʻaila 1
He uea uila pololei ma ka paia o kahi hale e halihali ana i ke au pololei o 20 Amperes. E hoʻoholo i ke kahua makeneti ma kahi kiko he 10 cm a me 20 cm ke kaʻawale.
Pahana
Ua ʻike ʻia:
Au uila (I) = 20 Amperes
Ka mamao (l 1 ) = 10 kenimika = 10/100 m = 1/10 m = 0,1 m = 10 -1 m
Ka mamao (l 2 ) = 20 kenimika = 0,2 m
Ka permeability o ka vacuum (µ o ) = 4π x 10 -7 Tm / A
Nīnau ʻia: Kahua Magnetic (B)
Pane:
Nā laʻanaʻola 2
ʻElua mau uea pololei like he 1 mika ka lōʻihi, ʻo ka mamao ma waena o nā uea ʻelua he 10 mm. Hoʻokele kēlā me kēia uea i ke au pololei 10 Ampere (DC), ma ke kuhikuhi kū pololei, kahi e like ai ke kuhikuhi o ke au uila ma nā uea ʻelua. E hoʻoholo i ka ikaika magnetic ma waena o nā uea ʻelua.
Pahana
Ua ʻike ʻia:
ʻO ka lōʻihi o kēlā me kēia uea (L) = 1 m
Ka mamao ma waena o nā uea ʻelua (l) = 10 mm = 0,01 m
Au uila (I) = 10 Amperes
Ka permeability o ka vacuum (µ o ) = 4π x 10 -7 Tm / A
Ua nīnau ʻia:
Pane:
Inā like ke kuhikuhi o ke au uila ma nā uea ʻelua, e kū mai kahi ikaika huki ma waena o nā uea ʻelua. I ka ʻaoʻao ʻē aʻe, inā kūʻē ke kuhikuhi o ke au uila ma nā uea ʻelua, e kū mai kahi ikaika hoʻokuke ma waena o nā uea ʻelua.
