Inductance of Ikhoyili

A ukubaluleka practical kubaluleke kakhulu ityala ekhethekileyo ye kagesi induction nesenzeko, kuthiwa self-inductance. Ngoko, xa coil induction yakha a lwangoku, ngoko ngaxeshanye ivela khona kunye wobhobhozayo magnetic leyo eyandisa ngokwandayo ngoku. Ngenxa utshintsho coil magnetic obhobhozayo ukhuthaza amandla electromotive (EMF), nto leyo ngokomlinganiselo isantya ngemagnethi utshintsho ukubhobhoza.

Ukususela kulo mzekelo umqhubi ukhuthaza amandla electromotive ngokwayo, ibizwa ngokuba self-induction. Le mba we self-inductance kwiisekethe zombane wambi xa kuthelekiswa ngokubonakala inertia in ubucukubhede.

Umkhosi electromotive aqhubela kwi yoqheliso coil phantsi kweempembelelo utshintsho obhobhozayo yayo ngemagnethi kuthiwa amandla electromotive self-kuFacebook.

Ngokutsho komthetho Lenz kaThixo, ngexesha ukukhula yonke obhobhozayo magnetic yayibalaseliswa Ikhoyili engathi, EMF self-aqhubela kwi Ikhoyili sibhekiswe lo mthombo amandla electromotive, iqukiwe kulo kwisekethe kwaye silwe ukwanda ngoku kwisekethe coil.

Xa zangoku Ikhoyili ufikelela ixabiso rhoqo wobhobhozayo magnetic liyayeka ukutshintsha, kwaye EMF self-aqhubela kwi Ikhoyili zero.
Ekubeni kukho self-yoqheliso, njengoko kuyo nayiphi na inkqubo yoqheliso magnetic, wayenga amandla electromotive kukuba ngokomlinganiselo nesantya apho wobhobhozayo magnetic ezinxulumene kunye wesekethe apho uhamba khona, utshintshiwe. Ubukhulu wobhobhozayo otsalayo kungekho yesinyithi kwi kisekiyo coil kwizinga apho utshintsho ngoku (ΔI / Δt), odala kwemali.

Ngoko ke, ubukhulu amandla electromotive of self-induction oqhubeka umqhubi kuba umlinganiselo ukuba apho utshintsho ngoku apho izinga.
Ukuba uthathe iingcingo iimilo ezahlukeneyo, icace phandle ukuba izinga efanayo utshintsho olukhoyo, amandla electromotive of self-induction, kubangele kwabo kuya kuba ezahlukeneyo.

Ngoko ke, ukuba singathatha coil kwaye ke olule ke omnye, ngoko ngezinga elifanayo apho kwenzeka utshintsho ngoku, i-self-yoqheliso amandla electromotive ye Ikhoyili iya kuba elide. Oku kungenxa yokuba umgca amandla ngasinye siba prinizyvaya coil, ethethana inani elikhulu amaxesha kunokuba ndzhendzheleko enye.

Le ubungakanani, leyo oluphawula uqhagamshelwano phakathi isantya apho ngoku kuyahlukahlukana kwi umxokelelwane, yaye oku oqhubeka self-induction EMF - circuit inductance.

Vumela inductance ye Ikhoyili yi-L ncwadi; ngelixa ukuxhomekeka le amandla electromotive kwezinga self-yoqheliso apho yangoku itshintswa lungabonakaliswa yi le ndlela ilandelayo:

E = - L (ΔI / Δt)

apha

u L = (ed.E ˖ iiyunithi. T) / (ed.I)

Sazigqibela ukuba kule formula, Δt = 1 yesibini, ΔI = E 1 ampere kunye volt = 1, siya nakufumana nto noko;

u L = 1 (in ˖ umzuzwana / kakuhle)

Le yunithi ibizwa ngokuba Henry (H).

ke,

1 ZiQalo = 1 (in ˖ umzuzwana / kakuhle)

Ngoko Henry - ke inductance le coil, apho utshintsho ngoku we-1 ampere yesibini nganye Iyandonwabisa i self-yoqheliso amandla electromotive ilingana no-1 volt.
Kuba umlinganiselo inductances ezincinane kusetyenziswa kumawaka Henry - MH (MH) okanye buyakwazi Henry - Uh (Uh).

Ukongeza, esetyenziswa rhoqo, kunye nezinye unit - inductance sentimitha, nge-1 cm = 1000 Uh inductor.

Ngaloo ndlela,

1 MH Mr = 1000 = 1.000.000 = 1.000.000.000 Uh cm

Le inductance ye Ikhoyili kuxhomekeke kwinani layo amagophe, imilo kunye nobukhulu. Xa linokuya liba likhulu inani amathuba kwi coil self-inductance, kokukhona inductance yayo.

Kwakhona, i-self-inductance, Ikhoyili inductance ukunyuka kakhulu xa eqalisa kwindawo engundoqo yesinyithi okanye nayiphi na enye into ngemagnethi.
abasebenza inductance ezinkulu kufuneka engathi e umbane kunye Motors, beesekethe evulekileyo ngexesha izinga ukutshintsha yangoku yombane (ΔI / Δt) liphezulu kakhulu kwezi engathi ibe nkulu self-induction amandla electromotive leyo, ukuba ukuphetshwa, kuya kubangela iyafa oyinkampani usambathisa.