He aha ka ka dielectric a eia i o ka meakino

Ia nō i loko o ke kula ma haʻawina o ke kālaikūlohea kumu, kamailio e pili ana i pouʻike manaʻo, wehewehe i ka dielectric a eia i o ka meakino. I ka wā e hiki mai, ina ua ole e pili pū ana i ka uila 'enekinia, i ka papa kuhikuhiEʻoihana kahuna, i poina ka maluhia ke kumuhana. Ma keia pepa, ua keia iloko o ka moe ma hope o kēia ho'ākāka 'ana.

Nō kāu, no ka wehewehe ana o ka makahiki "dielectric a eia i o ka meakino" ua ana manaoia he laʻana o ka mea pihana kona papa i palahalaha. Ho i ka simplest mea pihana ke aupuni 'o vacuo. Kau i ke kumukuai o ka pila uku ole .

Qv = (U * S * Ev) / b,

kahi D - mamao ma waena o nā papa, U - anakahi uila, S - wahi o ka papa, Ev - dielectric. ikaika. I ka hope o ka olua waiwai, ka mea, o ka dielectric a eia i o ka meakino me ka lewa (holo) a me ka mea like i 8.85 * 10 -12 Farad loa no mika.

Akā, capacitors hookaawale ana pā meakino i e ka holo ole wale, akā, i kekahi'ē aʻe dielectric mea. ʻae nō hoʻi, ma kēia hihia o ka dielectric a eia i o ka meakino mea okoa mai «Ev», nolaila, ke kauoha loli aʻe. Inā ka mea pihana ua pili i kekahi kumu o ka electromotive ikaika, i ka nui o kaʻoihana ma luna o nā papa i Qz. Ke dielectric a eia no ka mea,ʻo ia ka lākiō o ke kauoha Qz condenser papa e pili ana i kaʻoihana i loko o ka hihia o ka holo Qv, a laila

E = Qz / Qv.

Maopopo, ka mea Ana i kahi e. LIKE condenser i ka mana mai ke kumu.

I mea, ia mea i ka hoahanau dielectric a eia i o ka meakino. Ua hōʻike mai ana i na manawa he nui ka pinepine 'emi ka uku ole AaOIeIOUIeXAOAaIN hoʻokaʻawaleʻia ma ka dielectric, i like me ka papa ma ka vacuo. Oe ke hoi aku nei au i keia mea i kekahi o nā 'ano o ka mea.

Inā ka hoʻomāhuahua o ka uku ole i na papa o ka mana lako ua papani iho la, aia no he kŰia okoa. E kahe mai ana i ke anakahi uila, a no ia, emi ka uila kahua pinepine '. No ke aha?

Kekahi lako e ninoieo o nā'ātoma me electrons orbiting na nuclei. I ka wa a ka uila kahua hoi o ka makana ia lŘlŘ i loko o kēlā me kēia lawe lātoma o ka polarity o ka mea mawaho hana - he ai-kapaia polarization ho okumu i ka kūpenu iho ia i. Kēia e-mail kona helehelena. Ka mea hoʻi e komo i Polar a me ka nonpolar nā lātoma. Ma ka hihia mua i ka lātoma ua aʻo i kaʻoihana e like me ka mahinaʻai (anakahi uila), e like me dipoles caster, ka hoahanau permittivity meaʻano kiʻekiʻe. Ke kumukuai o ka permeability mea pinepine oi aku ma mua o 100 huahelu. I ka lua o ka hihia ( 'ole-Polar nā lātoma), eia nae aie i ka hana kahua, a me nā dipoles i hanaia, kekahi hapa o ka ikehu malaila, e kōkua ma muli o kā lākou māhele hoʻonohonohoʻia, nae mailuilu haalele permeability a me ka ponoʻole aku i 5 huahelu. It E e hoʻomaopopo i ka gaseous waiwai mau mai me ka haʻahaʻa permeability ku i kekahi poe he uuku o nā lātoma no pa alima buke, nānā 'ole o ko lākou maoli' ole.

No ka loa, he pono ole dielectric mea permeabilityʻikepili i hāʻawiʻia i loko o ka lakou mau papa, no laila, i ka wa a lawelawe na ho ka mea,ʻaʻohe pilikia me ka wehewehena o ka makemake maikai. Interestingly, i ka lewa i ka permeability o 1 pa alima. He wehewehe no ke aha la i loko o ka capacitors hoʻohana okoa hou dielectric, ahu iho -. Pālolo, Mika, paraffin, etc. pau kēia mau mea, me he permeability kiekie ae, hoomahuahua i ka waiwai o ka hoʻonui 'āhewa' ana ma luna o nā papa. Ma nā hua'ōlelo, ka capacitance hiki e like ole wale ma ke ala o ka papa wahi, akā, e hoʻokēʻai lākou i nā kiʻi. Au A Kupa i waena o 'ona me ka kiʻekiʻe permeability he pālolo (80) a me kekahi maloko wai o impurities (ma ka liʻiliʻi 81).