Usoro Nguzogide Ọdụdọ Eletriki
N'isiokwu gbasara iwu Ohm, e wepụtala usoro nke na-egosi mmekọrịta dị n'etiti voltaji eletriki (V), ọkụ eletrik (I) na iguzogide eletriki (R). N'ime mgbakọ na mwepụ, a na-egosipụta ya site na nha nhata:
Usoro a na-egosi na nguzogide eletriki (R) dabere kpọmkwem na voltaji eletriki (V) ma dabere na nkwụsịtụ na nkwụsịtụ na nkwụsịtụ na eletriki (I). Ka voltaji eletriki na-abawanye, otú ahụ ka nguzogide na-abawanye. N'aka nke ọzọ, ka ọkụ eletrik na-abawanye, otú ahụ ka nguzogide na-abawanye. Usoro a na-akọwa iwu Ohm naanị mgbe nguzogide (R) na-adịgide adịgide. Ọ bụrụ na nguzogide ahụ adịghị agbanwe agbanwe, usoro a anaghị akọwa iwu Ohm kama ọ na-akọwa nguzogide nke onye na-eduzi ya.
N'isiokwu a kpọrọ Iwu Ohm, a kọwakwara mmekọrịta dị n'etiti iguzogide onye nduzi (R), iguzogide onye nduzi (ρ), ogologo onye nduzi (l) na mpaghara mpaghara nkewa onye nduzi (A) . N'ime mgbakọ na mwepụ, a na-akọwa ya na nha nhata:
Dabere na nha nha a, a na-ekwu na nguzogide ahụ dabara kpọmkwem na nguzogide na ogologo nke onye na-eduzi ya, mana ọ dabara na mpaghara obe nke onye na-eduzi ya. N'ikwu ya n'ụzọ ọzọ, nguzogide ahụ na-abawanye ka nguzogide na/ma ọ bụ ogologo nke onye na-eduzi ya na-abawanye. Nguzogide ahụ na-ebelata ka mpaghara obe nke onye na-eduzi ya na-abawanye.
Ọ bụrụ na ogologo nke onye na-eduzi (l) na mpaghara obe (A) na-agbanwe agbanwe, mgbe ahụ nguzogide (R) na-adabere naanị na nguzogide (ρ). Ka nguzogide na-abawanye, nguzogide na-abawanye. Ka nguzogide na-ebelata, nguzogide eletriki na-ebelata. Uru nguzogide nke onye na-eduzi ọ bụla dabara kpọmkwem na okpomọkụ. Ọ bụrụ na okpomọkụ dị elu, nguzogide na-abawanye, ma ọ bụ nke ọzọ, ọ bụrụ na okpomọkụ dị ala, nguzogide na-ebelata.
Nhazigharị
Mgbanwe nke iguzogide bụ conductivity. Conductivity bụ nha nhata megide resistive, dịka egosiri na nha nhata dị n'okpuru:
Ọ bụrụ na e gosipụtara ya n'ihe gbasara conductivity, mgbe ahụ, usoro 2 ga-agbanwe gaa na:
Dabere na nha nha a, a na-ekwubi na nguzogide eletriki dị n'otu aka ahụ na nguzozi, ọ bụrụ na nguzozi nke onye na-eduzi ya ka ukwuu, nguzozi ahụ pere mpe, ma ọ bụ n'aka nke ọzọ, ọ bụrụ na nguzozi nke onye na-eduzi ya pere mpe, nguzozi ahụ ka ukwuu.
A na-egosi ụkpụrụ iguzogide ihe ọ bụla na tebụl dị n'okpuru.
Nkeji
Ngụkọta voltaji eletriki bụ Volt, ngụkọta ọkụ eletrik bụ Ampere, yabụ ngụkọta nke iguzogide bụ Volt/Ampere. A na-akpọkwa Volt/Ampere Ohm, nke Ω nọchiri anya ya, na-asọpụrụ Georg Simon Ohm (1789-1854), onye German physics. E wezụga Ohm, a na-ejikwa nkeji kiloohm na megaohm. 1 kiloohm (kΩ) = 1000 Ω = 10 3 Ω, ebe 1 megaohm (MΩ) = 1000.000 Ω = 10 6 Ω.
Ngwa nha
Ngwaọrụ eji atụ ihe mgbochi eletriki bụ ohmmeter. A na-etinye ngwa nha a n'ime multimeter, ngwaọrụ maka ịtụ voltaji, ugbu a, na iguzogide. A kọwara ohmmeters nke ọma n'isiokwu gbasara ngwa nha eletriki.
