Amandla of emkhakheni kagesi

Ukukhuluma ngokuthi yini amandla zasendle kagesi, kubalulekile ukuba aveze ukuthi nemingcele ezibalulekile. Naphezu kweqiniso lokuthi igama elithi "amandla" ngokwalo ababewazi futhi, Uma unganakile, kusobala, kulesi simo, udinga Qonda kahle ukuthi kuyini kusengozini. Ngokwesibonelo, njengoba yaziwa, amandla yasendle kagesi lingalinganiswa ngasiphi ngokungenasizathu ezingeni layo, evamile athathwe njengoba umsuka (okungukuthi, zero). Nakuba lokhu kunikeza abanye eguquguqukayo ukulungiswa izibalo, nephutha kungaholela amandla ezahlukene kakhulu Computing. Okwamanje sizobe ukucacisa kamuva, kusetshenziswa indlela.

Amandla of emkhakheni kagesi ngokuqondile okuhlobene nokuxhumana amacala amabili noma ngaphezulu iphuzu. Cabanga ngendaba yensizwa amacala amabili - Q1 futhi Q2. Amandla bezikhali emkhakheni kagesi (kuleli cala - electrostatics) kuchazwa ngokuthi:

W = (1/4 * Pi * E0) / (Q1 * Q2 / r),

lapho E0 - ukungezwani, r - ibanga phakathi amacala, Pi - 3,141.

Kusukela ensimini lokuqala enza wesibili (kanye noHezekeli), khona-ke lezi Amasimu ichaze nekhono. Icala lokuqala kuyalithinta wesibili:

W = 0.5 * (Q1 * Fi1 + Q2 * Fi2).

Kulesi ifomula (okhonjiswe 1), kukhona amanani amabili amasha - Fi1 futhi Fi2. Thina uwafake kukhompyutha.

Fi1 = (1/4 * Pi * E0) / (Q2 / r).

Ngakho:

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

Manje iphuzu lokuqala okubalulekile ifomula "1" iqukethe matemu amabili (q * Fi), empeleni emelela ukuxhumana namandla futhi inkokhelo Isici 0.5. Nokho, amandla yasendle kagesi - akusiyo ingxenye noma ngabe iliphi icala, ngakho-ke, ukuze kubhekelelwe lesi sici, kubalulekile ukwethula izilungiso, "0.5".

Njengoba sekuphawuliwe, ukuxhumana kufanele ku ngamunye namanye amacala (ezimbili akusho ukuthi nje). Kulokhu, kwabantu amandla yasendle kagesi ngenhla. Inani layo kungatholakala ngokufunda Summing ayithola ngokukhaphela pair of idatha ngamunye.

Manje emuva nempikiswano kukhethwa incwadi okukhulunywe ngayo ekuqaleni kwalesi sihloko. Ngakho, kusukela amafomula, kusobala ukuthi uma ukubala wenziwa maqondana amaphuzu kabi amandla akhe, ibanga ukusuka amacala okwakha infinity, umphumela uba ukubaluleka umsebenzi, okuyinto eye wenza emkhakheni, amacala sihluke nomunye ibanga elingapheli. Kodwa uma lokhu kudingekile ukuze ukwazi ukubaluleka umsebenzi ensimini owenziwe ngendlela ukunyakaza elincane amacala ngokwabo, isithenjwa iphuzu kungenzeka ekhethiwe noma, kusukela okuholela ukubaluleka ukubala kuzimele kukhethwa reference iphuzu.

Nasi isibonelo, njengoba ingasetshenziswa izibalo esisebenzayo. Ngokwesibonelo, kukhona ezintathu ukukhokha, ukucushwa kwezendawo okuyinto unxantathu. Ibanga (r) phakathi Q1, Q2 futhi Q3 bayalingana.

Thina ukubala ezingaba:

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

Manje sesingasho ukuthi siqiniseka ukucacisa amandla ukuxhumana uyala ngokwabo:

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

Lona umsebenzi ukuthi zizokwenziwa lapho kutfutsela ibanga elingapheli.

Uma ukufuduka wazo zontathu lisuselwa isikhungo ezivamile esilinganayo, unxantathu wakhiwa izinhlangothi R1 (ngokumelene r odlule).

Thola amandla:

W = 3 * ((q * q) / 4 * Pi * E0 * R1).

Kulokhu, sikwazi ukukhuluma ukunciphisa inani amandla ukubaluleka lonke uhlelo amacala amathathu. Kufanele kuqashelwe ukuthi uma ukubaluleka R1 (r) ivame infinity, amandla kokuqala umsebenzi ekhiqizwa bayalingana.

Izinkinga umsebenzi, bese ususa uhlelo, ubhekene necala okungahleliwe. Umphumela Yisimo esivamile amacala amabili zisendaweni r ibanga.

Amandla njalo kwesimiso esinjalo ilingana:

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

A ibhokisi uzokwenza umsebenzi ukunyakaza ngokwayo, okuyinto anda ilingana:

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

Khona-ke konke nje: kususwa icala phambili kuzoholela ukuthi amandla Imininingwane ilingana zero (akukho imvume). Kulokhu, umsebenzi futhi insimu anda equalized. Ngamanye amazwi, amandla original iguqulwe ngokuphelele ku umsebenzi.

Izibalo ezihlobene ukuzimisela amandla insimu kagesi ngokuvamile esetshenziselwa ukukhethwa capacitors. Ngemva idivayisi ngamunye onjalo siqukethe plate amabili ahlukaniswe r ibanga, ngasinye lapho lokushaja kanzulu.