Bikunze kugaragara ko abatangiye benshi barimo guterera kuri résistance mugihe basana uruziga, kandi rugasenywa rukanasudwa.Mubyukuri, hari byinshi byo gusana.Mugihe usobanukiwe ibyangiritse biranga kurwanywa, ntugomba kumara umwanya munini.

Resistor nikintu kinini cyane mubikoresho byamashanyarazi, ariko ntabwo aricyo kintu gifite igipimo cyangiritse cyane.Gufungura umuzunguruko nubwoko busanzwe bwo kwangirika.Ntibisanzwe kubirwanya kuba binini, kandi ntibisanzwe kubirwanya kuba bito.Mubisanzwe harimo ibyuma birwanya karubone, ibyuma birwanya ibyuma, ibyuma bikomeretsa insinga hamwe n’ubwishingizi.

Ubwoko bubiri bwa mbere bwurwanya ni bwo bukoreshwa cyane.Kimwe mu biranga ibyangiritse ni igipimo cyinshi cyo kwangirika kwinshi (munsi ya 100Ω) no guhangana cyane (hejuru ya 100kΩ), hamwe no kurwanya hagati (nka amajana ya ohm kugeza kuri kilohms icumi) Ibyangiritse cyane;icya kabiri, iyo résistoriste nkeya yangiritse, akenshi irashya kandi ikirabura, ibyo bikaba byoroshye kuyibona, mugihe irwanya-résistoriste yangiritse gake.

Kurwanya Wirewound muri rusange bikoreshwa mukugabanya umuvuduko mwinshi, kandi kurwanya ntabwo ari binini.Iyo amashanyarazi ya silindrike yangiritse, bamwe bazahinduka umukara cyangwa ubuso buraturika cyangwa buvunika, kandi bamwe ntibazagira ibimenyetso.Kurwanya sima ni ubwoko bwurugingo rukomeretsa insinga, rushobora kumeneka iyo rwatwitse, bitabaye ibyo ntihazagaragara ibimenyetso bigaragara.Iyo ristoriste ya fuse yaka, igice cyuruhu kizaturika hejuru, kandi bamwe ntibafite ibimenyetso, ariko ntizigera gitwikwa cyangwa ngo kibe umukara.Ukurikije ibiranga haruguru, urashobora kwibanda mugusuzuma ibyangiritse hanyuma ukamenya vuba ibyangiritse.

Dukurikije ibiranga byavuzwe haruguru, dushobora kubanza kureba niba abarwanya-buke buke ku kibaho cyumuzunguruko bafite ibimenyetso byo gutwika umukara, hanyuma ukurikije ibiranga ko benshi mubarwanya bafunguye cyangwa abarwanya bakaba benshi iyo abarwanya ari byangiritse, kandi birwanya-birwanya cyane byangiritse byoroshye.Turashobora gukoresha multimeter kugirango dupime mu buryo butaziguye kurwanywa kumpande zombi zumurwanya-mwinshi kurubaho.Niba ibipimisho byapimwe birenze ibyo kurwanira izina, kurwanywa bigomba kwangirika (menya ko kurwanya bihagaze neza nyuma yo kwerekana bihamye. Mu gusoza, kubera ko hashobora kuba ibintu bisa n’ibintu bifatika mu muzunguruko, hariho uburyo bwo kwishyuza no gusohora ), niba ibipimo byapimwe ari bito kurenza kurwanya nominal, muri rusange birengagizwa.Muri ubu buryo, imyigaragambyo yose ku kibaho cy’umuzingi ipimwa rimwe, kabone niyo igihumbi “cyicwa nabi”, umuntu ntazabura.