Tsarin Juriya da Wutar Lantarki
A cikin labarin da ke kan dokar Ohm, an samo wata dabara da ke bayyana alaƙar da ke tsakanin ƙarfin lantarki (V), wutar lantarki (I) da juriyar lantarki (R). A lissafi, ana bayyana ta ta hanyar lissafi:
Wannan lissafi ya nuna cewa juriyar lantarki (R) tana daidai gwargwado kai tsaye ga ƙarfin lantarki (V) kuma tana daidai gwargwado ga ƙarfin lantarki (I). Yayin da ƙarfin lantarki ya fi girma, ƙarfin juriya ya fi girma. Akasin haka, girman ƙarfin lantarki, ƙarfin juriya ya fi girma. Wannan lissafi yana bayyana dokar Ohm ne kawai lokacin da juriya (R) ta kasance mai daidaito. Idan juriya ba ta da daidaito, wannan lissafi ba ya bayyana dokar Ohm amma yana bayyana juriyar mai gudanarwa.
A cikin labarin mai taken Dokar Ohm, an kuma yi bayanin dangantakar da ke tsakanin juriyar jagora (R), juriyar jagora (ρ), tsawon jagora (l) da yankin giciye-sashe na jagora (A) . A lissafi, an bayyana shi a cikin lissafi:
Bisa ga wannan lissafi, an kammala da cewa juriya tana daidai gwargwado kai tsaye ga takamaiman juriya da tsawon mai gudanarwa, amma tana daidai gwargwado da yankin mai gudanarwa. A wata ma'anar, juriya tana ƙaruwa yayin da takamaiman juriya da/ko tsawon mai gudanarwa ke ƙaruwa. Juriya tana raguwa yayin da yankin mai gudanarwa ke ƙaruwa.
Idan tsawon mai jagora (l) da yankin giciye-sashe (A) sun kasance iri ɗaya, to juriya (R) ta dogara ne kawai akan juriya (ρ). Yayin da juriya ke ƙaruwa, juriya tana ƙaruwa. Yayin da juriya ke raguwa, juriyar lantarki tana raguwa. Ƙimar juriya ta kowane mai jagora tana daidai da zafin jiki kai tsaye. Idan zafin jiki ya fi girma, juriya tana ƙaruwa, ko akasin haka, idan zafin jiki ya yi ƙasa, juriya tana raguwa.
Gudanar da wutar lantarki
Juyin juriya shine juyi. Juyin juriya yana daidai da juyi, kamar yadda aka bayyana a cikin lissafin da ke ƙasa:
Idan aka bayyana shi dangane da yanayin aiki, to lissafi na 2 ya canza zuwa:
Bisa ga wannan lissafi, an kammala da cewa juriyar lantarki tana da daidaiton juyi da juriyar lantarki, idan juriyar mai jagora ta fi girma, juriyar ta fi ƙanƙanta, ko akasin haka, idan juriyar mai jagora ta fi ƙanƙanta, juriyar ta fi girma.
Ana nuna ƙimar juriya na kowane abu a cikin teburin da ke ƙasa.
Naúrar
Naúrar wutar lantarki ita ce Volt, naúrar wutar lantarki ita ce Ampere, don haka naúrar juriya ita ce Volt/Ampere. Ana kuma kiran Volt/Ampere da Ohm, wanda Ω ke wakilta, yana girmama Georg Simon Ohm (1789-1854), masanin kimiyyar lissafi na Jamus. Bayan Ohm, ana amfani da naúrorin kiloohm da megaohm. 1 kiloohm (kΩ) = 1000 Ω = 10 3 Ω, yayin da 1 megaohm (MΩ) = 1000.000 Ω = 10 6 Ω.
Kayan aikin aunawa
Kayan aikin da ake amfani da shi don auna juriyar lantarki shine ohmmeter. An haɗa wannan kayan aikin aunawa cikin multimeter, na'urar auna ƙarfin lantarki, wutar lantarki, da juriya. An tattauna ohmmeters sosai a cikin labarin kan kayan aikin auna lantarki.
