Resistor wani bangare ne na lantarki mai aiki don ƙirƙirar juriya a cikin kwararar wutar lantarki. A kusan dukkan hanyoyin sadarwa na lantarki da da'irori na lantarki ana iya samun su. Ana auna juriyar a cikin ohms. Ohm shine juriyar da ke faruwa lokacin da kwararar ampere ɗaya ta ratsa ta resistor tare da faɗuwar volt ɗaya a kan tashoshin sa. Wutar lantarki tana daidai da ƙarfin lantarki a ƙarshen ƙarshen. Wannan rabo yana wakilta taDokar Ohm:

Ana amfani da juriya don dalilai da yawa. Misalai kaɗan sun haɗa da canjin wutar lantarki, rarraba wutar lantarki, samar da zafi, da'irori masu daidaitawa da lodawa, ribar sarrafawa, da kuma daidaita lokaci. Ana samun su a kasuwa tare da ƙimar juriya akan kewayon fiye da umarni tara na girma. Ana iya amfani da su azaman birki na lantarki don wargaza kuzarin motsi daga jiragen ƙasa, ko kuma su zama ƙasa da murabba'in milimita don kayan lantarki.

Ƙimar Resistor (Ƙimar da aka fi so)
A shekarun 1950, ƙaruwar samar da juriya ya haifar da buƙatar ƙimar juriya mai daidaito. An daidaita kewayon ƙimar juriya tare da abin da ake kira ƙimar da aka fi so. An ayyana ƙimar da aka fi so a cikin jerin E. A cikin jerin E, kowane ƙima yana da wani kaso mafi girma fiye da na baya. Jerin E daban-daban suna wanzu don haƙuri daban-daban.

Aikace-aikacen juriya
Akwai babban bambanci a fannonin aikace-aikacen resistors; daga daidaiton sassan lantarki na dijital, har zuwa na'urorin aunawa don adadi na zahiri. A cikin wannan babi an lissafa aikace-aikace da yawa masu shahara.

Masu juriya a jere da layi ɗaya
A cikin da'irori na lantarki, ana haɗa resistor sau da yawa a jere ko a layi ɗaya. Misali, mai tsara da'ira zai iya haɗa resistor da yawa tare da ƙimar daidaito (E-series) don isa ga takamaiman ƙimar juriya. Don haɗin jeri, wutar lantarki ta kowace resistor iri ɗaya ce kuma juriya daidai take da jimlar resistor ɗin mutum ɗaya. Don haɗin layi ɗaya, ƙarfin lantarki ta kowace resistor iri ɗaya ne, kuma juzu'in juriya iri ɗaya daidai yake da jimlar ƙimar juzu'i na duk resistor masu layi ɗaya. A cikin kasidu resistor masu layi ɗaya da jerin an ba da cikakken bayanin misalan lissafi. Don magance hanyoyin sadarwa masu rikitarwa, ana iya amfani da dokokin da'ira na Kirchhoff.

Auna wutar lantarki (shunt resistor)
Ana iya ƙididdige wutar lantarki ta hanyar auna raguwar ƙarfin lantarki a kan wani resistor mai daidaito tare da juriya da aka sani, wanda aka haɗa shi a jere tare da da'irar. Ana ƙididdige wutar ta amfani da dokar Ohm. Wannan ana kiransa ammeter ko shunt resistor. Yawanci wannan resistor ne mai inganci mai ƙarfi wanda ke da ƙarancin ƙimar juriya.

Masu juriya ga LEDs
Fitilun LED suna buƙatar takamaiman wutar lantarki don aiki. Ƙarancin wutar lantarki ba zai kunna LED ba, yayin da wutar lantarki mai yawa na iya ƙone na'urar. Saboda haka, galibi ana haɗa su a jere tare da resistor. Ana kiran waɗannan resistor na ballast kuma suna daidaita wutar lantarki a cikin da'irar ba tare da ɓata lokaci ba.

Mai hana injin hura iska
A cikin motoci, tsarin iskar iska yana aiki ta hanyar fanka wanda injin busarwa ke tuƙawa. Ana amfani da resistor na musamman don sarrafa saurin fanka. Wannan ana kiransa resistor na injin busarwa. Ana amfani da ƙira daban-daban. Ɗayan ƙira shine jerin resistor na waya daban-daban don kowane saurin fanka. Wani ƙira kuma ya haɗa da da'ira mai cikakken haɗin kai akan allon da'ira da aka buga.