Yintoni na ke ukusoloko Heating medium

Ngoxa esikolweni izifundo teacher physics, sithetha ngeziganeko zombane, uchaza oko rhoqo Heating medium. Kwixesha elizayo, ukuba uvumo eyintloko akazalani ubunjineli yombane, isihloko yalityalwa ngokukhuselekileyo. Kweli phepha, sikhumbula oyena nobangela le nkcazelo.

Ngokuqhelekileyo, kuba ingcaciso elithi "ukusoloko Heating medium" lidla kugqalwa umzekelo capacitor ogama macwecwe flat. Ukumela capacitor elula ibekwe vacuo. Ukumisela ixabiso kwentlawulo zombane :

Qv = (U * S * eV) / d,

apho d - umgama phakathi iipleyiti, U - ombane, S - ummandla kwipleyiti, eV - Heating. rhoqo. Le yokugqibela i ixabiso reference, oko ihlupha Heating medium ngaphandle emoyeni (emoyeni) kwaye ilingana no 8.85 * 10 -12 isidanga Farad imitha nganye.

Kodwa capacitors eyahlula ipleyiti medium inokuba into elapha nje kuphela, kodwa nayiphi na enye into Heating. Ngokucacileyo, le meko ukusoloko Heating medium yahlukile «eV», ngoko, isimangalo iyahluka. Ukuba capacitor oludityaniswe ngumthombo amandla electromotive, ixabiso isigxina phezu kwamacwecwe uba Qz. Abehla Heating umbandela lulwahlulo yoyalo Qz amacwecwe ekondensa odityaniswe isigxina kwimeko ongenawo Qv, ngamanye

E = Qz / Qv.

Kucacile ukuba, imilinganiso angekhoyo. ekondensa Kuxhaswe ithatha amandla ukusuka kumthombo.

Enyanisweni, ihlupha isalamane Heating medium. Ibonisa ukuba zingaphi izihlandlo amandla liyancipha intlawulo intsebenziswano ezahlulwe sisithuba a Heating, xa kuthelekiswa iipleyiti vacuo. Unako kwakhona ukuba le yenye iimpawu eziphathekayo.

Ukuba nokwanda kwentlawulo Emacebeni azo umbane wayeka, kukho isenzeko eyahlukileyo. Ilahla ombane, yaye ngenxa yoko, kunciphisa i zombane ngamandla endle. Kutheni?

Naziphi na izinto iqulathe athom kunye elektroni Bajikeleza nuclei. Xa unikezelo intsimi yombane kwenzeka xa umdlali ophethe molecule nganye ezichaseneyo yezenzo lwangaphandle - ebizwa ngokuba nokwehlukana oyinxalenye dipole. Le e-mail yakhe imbonakalo. Le nkcazelo ngokwalo kuba iimolekyuli polar kunye nonpolar. Kwimeko yokuqala molecule utsaleleka ngokungqinelana endle (ombane), kwakunye dipoles okuphosela, lo permittivity isihlobo kunokuba phezulu. Ixabiso le permeability idla ngaphezu kweeyunithi 100. Kwimeko yesibini (molekyuli non-polar), nangona ngenxa endle intshukumo kunye dipoles akhiwa, yinxalenye amandla wachitha ukugcina uqwalaselo yabo lwendawo, kodwa permeability singabalulekanga yaye kunqabile idlula kweeyunithi ezi-5. Kufuneka kuqatshelwe ukuba into sukube usoloko a permeability ephantsi ngenxa yokuba inani elincinane iimolekyuli nganye iyunithi umthamo, kungakhathaliseki ukuba zingakanani zendalo.

Ngokuba izinto zixhaphakileyo Heating data permeability zinikwe kwiitheyibhile ezichaphazelekayo, ngoko xa usenza izibalo akukho ubunzima kwenkcazo ixabiso olifunayo. Okubangel 'umdla kukuba, umoya uba permeability of unit 1. Oku kucacisa ukuba kutheni le capacitors basebenzisa umaleko Heating ezongezelelweyo ezahlukeneyo -. Ceramics, mica, iparafini, njl Zonke ezi zinto, ukuba permeability ephakamileyo, ukwandisa ixabiso isigxina emfono Emacebeni. Ngamanye amazwi, le capacitance akufanele ukunyuswa nje kuphela ngendlela indawo iipleyiti, kodwa ebahlula imifanekiso. Ziintshatsheli phakathi izinto kunye permeability aphezulu iiseramikhi (80) kunye namanzi okuhlamba of ubumdaka (ubuncinane 81).