Inductance na nada

A muhimmanci sosai m muhimmanci shi ne na musamman hali na electromagnetic shigar da sabon abu, da ake kira kai-inductance. Saboda haka, a lokacin da shigar da nada Forms halin yanzu, sa'an nan a lokaci guda tare da shi ya taso ne da Magnetic juyi wanda ƙara da kara halin yanzu. Tare da canji a cikin Magnetic juyi nada yanã electromotive karfi (EMF), wanda shi ne na gwargwado ga Magnetic juyi canji gudun.

Tun a wannan yanayin da shugaba yanã da wani electromotive karfi a kanta, shi ne ake kira kai-shigar da. The sabon abu na kai-inductance a cikin wutan lantarki ne, wani lokacin idan aka kwatanta da bayyanuwar inertia a makanikai.

A electromotive karfi jawo a shigar da nada a ƙarƙashin rinjayar canje-canje na da kansa Magnetic juyi ne ake kira kai-shigar da electromotive karfi.

A cewar Lenz ta doka, a lokacin da dukan girma Magnetic juyi Ribar da nada windings, kai-jawo EMF a nada aka directed a kan electromotive karfi source, aka hada a cikin wannan da'ira da counteracts da karuwa a halin yanzu a cikin nada kewaye.

Lokacin da na yanzu a nada ya kai wani m darajar da Magnetic juyi ceases canja, da kuma kai-jawo EMF a nada zama sifili.
Tare da wani kai-shigar da, kamar yadda a duk wani tsari na electromagnetic shigar da, jawo electromotive karfi ne kunnen doki gudun a da Magnetic juyi nasaba da kewaye ta hanyar abin da na yanzu gudana, an canza. The girma na Magnetic juyi a cikin rashi na baƙin ƙarfe a cikin nada gwargwado ga kudi a da yanzu canje-canje (ΔI / Δt), da samar da kwarara.

Saboda haka, da girma da electromotive karfi na kai-shigar da cewa taso a wani shugaba ne na gwargwado ga kudi a da yanzu canje-canje a cikinta.
Idan ka dauki wayoyi na daban-daban siffofi, shi dai itace cewa da ciwon guda kudi na canji na yanzu, electromotive karfi na kai-shigar da, sakamakon su zai zama daban-daban.

Saboda haka, idan muka dauki nada sa'an nan su shimfiɗa a daya bi da bi, sa'an nan a wannan kudi a da yanzu canji ya auku, da kai-shigar da electromotive karfi na nada zai zama ya fi tsayi. Wannan shi ne saboda cewa kowane ikon line prinizyvaya nada jũya, shi ya shagaltar da ya fi girma yawan sau fiye da guda madauki.

The yawa, wanda characterizes alaka tsakanin gudun da wanda yanzu dabam a cikin sarkar, kuma wannan ya taso a kai-shigar da EMF - inductance kewaye.

Bari inductance na nada da wasika L; yayin da dogaro da electromotive karfi na kai-shigar da kudi a da yanzu aka canza za a iya bayyana ta da wadannan dabara:

E = - L (ΔI / Δt)

a nan

u L = (ed.E ˖ raka'a. T) / (ed.I)

Feminism lafazin faransanci a cikin wannan dabara, Δt = 1 biyu, ΔI = E 1 ampere da volt = 1, zamu sami:

u L = 1 (a ˖ sec / kyau)

Wannan naúrar ake kira da henry (H).

Saboda haka,

1 Far = 1 (a ˖ sec / kyau)

Saboda haka Henry - ne inductance na nada, wanda yanzu canji na 1 ampere da biyu murna da kai-shigar da electromotive karfi daidaita 1 volt.
Domin aunawa kananan inductances amfani thousandths na Henry - MH (MH) ko millionths na Henry - uh (uh).

Bugu da kari, akai-akai amfani da shi, da kuma sauran naúrar - santimita inductance, tare da 1 cm = 1000 uh inductor.

Saboda haka,

1 MH Mr = 1000 = 1.000.000 = 1.000.000.000 uh cm

A inductance na nada shi ne dogara a kan ta yawan jũya, siffar da size. A mafi girma da yawan jũya a nada kai-inductance, da girma ta inductance.

Har ila yau, kai-inductance, da nada inductance ƙaruwa da yawa a lokacin da ta gabatar da shi a cikin zuciyar na baƙin ƙarfe ko wani Magnetic abu.
Manyan inductance electromagnets da windings a janareto da kuma Motors, bude kewaye a lokacin da yawan canzawar na lantarki (ΔI / Δt) ne sosai high a wadannan windings iya zama manyan kai-shigar da electromotive karfi wanda, idan ba kauce masa, zai haifar da rashin lafiya Tuddan rufi.