Ko te pūngao o te mara hiko

Te kōrero e pā ana ki te mea te pūngao o te mara hiko, he mea e tika ana ki te faaite atu e ko te reira tawhā nui. Ahakoa te meka e te wā "pūngao" iho he tino waia, me te, i mawhiti tuatahi, kitea, i roto i tenei take, e hiahia ana koe he pai te māramatanga o te mea kei i tĭtĭ. Hei tauira, rite mohiotia te, e taea ana te ruri te pūngao o te parae hiko i tetahi tona taumata noho, conventionally tangohia rite te take (e ko, kore). Ahakoa homai tenei etahi ngāwari i roto i te faaineineraa o tātaitanga, kia he hapa arahi ki te mana rorohiko rawa rerekē. I tēnei wā ka whakamārama tatou i muri, te whakamahi i te tātai.

Ko e pā ana tika ki te pāhekoheko o utu mata e rua, neke atu rānei te pūngao o te mara hiko. Fakakaukau angé ki he te take o rua utu - Q1 me q2. Ko te pūngao moe o tautuhia te rite - ko te mara hiko (electrostatics i roto i tenei take):

W = (1/4 * Pi * E0) / (Q1 * q2 / r),

i reira E0 - mānukanuka, r - tawhiti i waenganui i utu, Pi - 3,141.

Mai mahi te mara tuatahi i runga i te tuarua (me te hurihia), ka tautuhi enei mara i te moe,. Ko te tiaki tuatahi he pānga i runga i te rua o:

W = 0.5 * (Q1 * Fi1 + q2 * Fi2).

I roto i tenei tātai (denoted e 1), i reira e uara hou e rua - Fi1 me Fi2. whakatatau tatou ratou.

Fi1 = (1/4 * Pi * E0) / (q2 / r).

Fakatatau ki ai:

Fi2 = (1/4 * Pi * E0) / (Q1 / r).

Na te wāhi nui tuatahi ko te tātai "1" kei roto e rua ngā (q * Fi), mau e tohu ana i te pūngao pāhekoheko me te tiaki tauwehe o 0.5. Heoi, ko te pūngao o te mara hiko - ehara i te mea wahi o tetahi tiaki, reira, ki te tango i pūkete o tenei āhuatanga, he mea e tika ana ki te whakauru i te ako, "0.5".

Ka rite ki kua whakahuatia, te pāhekoheko i runga i ia atu utu e rave rahi (e kore e tika noa e rua). I roto i tenei take, te kiato pūngao o te mara hiko i runga. Ka taea te kitea tona uara mā te Whakarāpopoto whiwhi hoki ia rua o raraunga.

Na hoki ki te take o te pai rawa o te tohutoro whakahuatia i roto i te timatanga o tenei tuhinga. Ko te kupu, i te tātai, whai reira e ki te kawea te tātaitanga i roto i te faatura ki ngā noho, te tawhiti i te utu e whangai ana ki te mutu-, te hua ko te uara o te mahi, kua hanga nei e te mara, rerekē utu i ia atu i te tawhiti mure ore. Otiia ki te mea e tika ana ki te mohio te uara o te mahi mara whakapaua i roto i te kaupapa āhua iti o te utu a ratou, kia whiriwhiri te wāhi tohutoro kia rānei, mai te mea motuhake o te whiriwhiri o te pūwāhi tohutoro te tātai uara hua.

Ko te tauira i konei, pera taea te whakamahi i te reira i roto i ngā tātai mahi. Hei tauira, i reira e toru o te tiaki, te whirihoranga mokowā o e ko te tapatoru. Tawhiti (r) i waenganui i Q1, q2 me te Q3 e rite.

tātai tatou i te pūmanawa:

Fi = 2 * (q / 4 * Pi * E0 * r).

inaianei e taea tatou te whakatau utu te pūngao pāhekoheko ratou:

W0 = 3 * ((q * q) / 4 * 3.141 * E0 * r).

Ko te mahi e ka meinga kia ka neke ki te tawhiti mure ore tenei.

Ki te ahu te te displacement o toru katoa i te pokapū noa o te moni ano, i hanga te tapatoru ki te taha r1 (ki te r o mua).

Te whakatau i te pūngao:

W = 3 * ((q * q) / 4 * Pi * E0 * r1).

I roto i tenei take, ka taea e tatou e te kōrero e pā ana ki te whakaiti i te uara pūngao tapeke o te pūnaha katoa o toru utu. Me kï reira e te mea e whangai ana i te uara o r1 (r) ki mutu-, te pūngao tuatahi me te mahi hua e rite.

Haafifi i te mahi, a ka tango i te pūnaha te tiaki tupurangi. Ko te hua ko te take matarohia o utu e rua kei i te r tawhiti.

He rite ki te pūngao o te pūnaha taua:

W = (q * q) / (4 * Pi * E0 * r).

He pouaka ka mahi i te mahi i runga i te kaupapa ake, i te mea numera rite ki:

A = 2 * ((q * q) / 4 * Pi * E0 * r).

Na noa nga mea katoa: te tango i te tiaki atu ka hua i roto i taua he rite ki te kore (e kore waere) te pūngao katoa. I roto i tenei take, ea te mahi me te mara o te tatau. I roto i te mau parau te tahi atu, kua tahuri rawa te pūngao taketake ki te mahi.

Calculations e pā ana ki te faaotiraa o te pūngao mo te mara hiko te tikanga e whakamahia ana mo te kōwhiringa o ngā pūnga. I muri ngā pūrere taua ia o paraharaha e rua wehea e te r tawhiti, i ia o te mea takiwa te tiaki.