Ka ikaika o ka mea pihana a me kona 'auhau

Inā mau kauoha hoike mau insulated conductors, ma waena o ia ma laila i ka ai-kapaia Loaʻaʻia koena unuhi, i hilinaʻi nui ma ka nui o ka malama a me ka anahonua o na conductors. Ma ia hihia, ina na hoopii e like me ka nui akā, e ku pono ana ma ka hoailona, e hiki ke komo i ka wehewehena o ka capacitance, mai a oe hiki laila kiʻi i ka manaʻo o ana i ka ikaika o ka mea pihana. Ka uila capacitance o ka'ōnaehana iloko olaila a mau conductors, ka lākiō o kekahi o na hoopii a hiki i ka Loaʻaʻia likeʻole ma waena o nā conductors.

Ka ikaika o ka mea pihana hilinaʻi nui ma luna o ka capacitance. Ua hiki ke nānā 'ia e hoʻomaulia o keia lākiō. Ka ikaika o ka mea pihana (haʻilula) e e imua i ke kaulahao:

W = (C * U * U ) / 2 = (Q * Q) / (2 * C) = Q * U / 2, kahi W- ikehu o ka mea pihana C mea capacitance, U- Loaʻaʻia likeʻole ma waena o nā papaʻelua (anakahi uila) , q- kumukuai o ka uku ole ke dala.

Ke kumukuai o ka capacitance hilinaʻi nui ma ka nui a me ke kinona o ka alakaʻi mele, a me ka dielectric e hoʻokaʻawale mau conductors. A'ōnaehana ma a ka uila ke kahua ua kia (IIeEeAIEUIeXAIIUE) wale nō i loko o ka kekahi wahi, i kapaʻia he condenser. Na conductors mea e mai i ka mea i kapaia na papa. 'O kēia ka simplest manao o ka ai-kapaia ia laua-una mea pihana.

Ke loa na mea hoʻoluku - mau lalo papa me ka hiki, e hoʻomaka i ka pilaʻikena. Mau papa i hoonohonoho ia ma ia laua ma ka (kŘpa a uuku) ka mamao mai kekahi i kekahi, a kaawale ma kekahi ahu iho la, mai ka insulator. Ke kahua ikaika o ka mea pihana ma keia hihia ua ua IIeEeAIEUIeXAIIUEʻano nui ma waena o nā papa. Eia naʻe, ma na kihi o ka papa, a me ka puni mai la ia lŘlŘ aka o kona kulana nawaliwali pāhawewe. Ua Ua kapaʻia i loko o ka moʻokalaleo o ka hoopuehu kahua. Ma ka hapanui o na hihia, ka mea, ua hoʻoholo ihola e kāpae'ōlelo iā lākou, a kuhi ana o ka ikaika o ka mea pihana a pau ka loa ma waena o nā papa. Akā, ma kekahi hihia ka mea, ua nō ia i loko o ka mooolelo (ʻano nui ke hoʻohana hihia mikroemkostey paha, conversely, Ultra-).

Uila capacitance (nolaila, o ka ikaika o ka mea pihana) hilinaʻi nui ma luna o ka papa. Inā mākou e nānā i ka haʻilula C = E0 * S / n, kahi C- capacitance, E0- nui aiee o ia aiao like dielectric a eia i (i loko o keia hihia, holo) d- waiwai a me ka mamao ma waena o nā papa, e mea hiki ke hana i kekahi definite ka hopena i ka capacitance o ia he pelane mea pihana mea inversely hapaʻauhau i ka waiwai o ka mamao ma waena o nā papa a me ka mea pololei hapaʻauhau i kā lākou wahi. Inā ka makahiki ma waena o nā nā uila aʻa lolo, e hoʻokō 'ia kekahi kekahi dielectric, e hoomahuahua i laila, i ka ikaika o ka mea pihana a me kona' auhau i E manawa (E ma keia hihia - ka dielectric a eia i).

Pela, ua hiki e hoike haʻilula a me ka Loaʻaʻia ikehu, a accumulates ma waena o nā nā uila aʻa lolo elua (papa) o ka mea pihana: W = Q * E * b . Eia naʻe, he nui maʻalahi e hoike i ka manaʻo o "ikehu mea pihana" ma nona iho: W = (C * U * U) / 2.

Haʻilula ia laua a me ka pūkaʻina pili 'o Randy noho henua pololei no kekahi helu o capacitors pili ana i ka o na pu ki.