Ciki juriya da kuma ta jiki ma'anar

Kowane halin yanzu source na da ciki juriya. A lantarki kewaye - rufaffiyar kewaye da masu amfani da su da irin ƙarfin lantarki yana amfani. Kowane kwane-kwane yana waje da ciki juriya.

External juriya da dukan kewaye da aka kira abokin ciniki da kuma conductors, da kuma ciki da juriya zo daga Madogararsa.

Idan na yanzu tushen ne wani lantarki na'ura, sa'an nan ta ciki impedance ne zuwa kashi wani aiki, inductive kuma capacitive. The aiki shugaba dogara a kan ta tsawon da kauri, da kuma kayan daga wanda shugaba, kuma ta yanayin. Inductive dogara a kan nada inductance (ta girma emf) da kuma capacitance generated tsakanin jũya daga windings. Yana da quite kananan. Idan tushen ne a al'ada baturi, da juriya saboda ta electrolyte ne kuma Ya halitta.

Yanzu - shi ne mai directed motsi na barbashi da kuma juriya - shi ne ya haifar da wani hani ga ta motsi. Irin wannan cikas ake ci karo a cikin electrolyte da gubar faranti da batura, a takaice, a duk inda akwai wani halin yanzu.

Saboda gaskiya cewa akwai ciki juriya a source, ba shi yiwuwa a yi imani da cewa tashin hankali a cikin sarkar - wannan shi ne cikakken tushen electromotive karfi. Hakika, da irin ƙarfin lantarki drop at tushen za a iya watsi da, amma kawai a lokacin da shi ne negligible.

Idan da wadata da sarkar ne high igiyoyin, da m ƙarfin lantarki ba za a dauke gaskiya electromotive karfi. A halin yanzu a cikin tushen - shi ne wata ãyã daga cikin irin ƙarfin lantarki drop a cikinsa. A wannan yanayin, dokar Kirchhoff, wanda ya furta cewa gaskiya EMF sarkar - shi ne Naira Miliyan Xari da irin ƙarfin lantarki saukad da a duk yankuna, ciki har da wadanda a Madogararsa. A dabara aka rubuta a matsayin:

E = ΣU + Ir r

inda:

E - jimlar electromotive karfi na da kewaye.
U - ƙarfin lantarki drop a kewaye sassan.
Ir - ciki yanzu samar da tushen;
r - ciki tushen impedance.

Don gane da jiki ma'anar ciki juriya da tushen ba, a can ya zama wasu kwarewa. Da farko auna electromotive karfi Madogararsa. Wannan ne yake aikata ta haɗa wani voltmeter da baturi, wanda ba a karkashin load. Bayan wannan, a kananan juriya da alaka a jerin kuma ammeter sa. Saboda haka, yanzu za a sani, alhãli kuwa, shi ne zama dole ga ma auna ƙarfin lantarki a karkashin load.

Tantance dabi'u na duk sauki domin sanin ciki da juriya. Don yin wannan, na farko na dukkan ƙaddara da irin ƙarfin lantarki digo a cikin baturi. Amfani da dabara

Ur = EU

Mun yi lissafin.

A wannan dabara:

Ur - jifa da ciki tushen irin ƙarfin lantarki juriya;
E - ƙarfin lantarki (electromotive karfi) auna a source ba tare da mabukaci.
U - ƙarfin lantarki, auna kai tsaye a kan juriya.

Saboda haka, ciki juriya da aka lasafta ta da wadannan dabara:

r = Ur / I

Wasu masana watsi da wannan darajar, la'akari da cewa ba za a iya watsi da saboda kananan darajar. Duk da haka, yi ya nuna cewa ga hadaddun lissafin ciki juriya ƙwarai shafi karshe sakamakon.