Kuvame ukubonakala ukuthi abaqalayo abaningi baphonsa ukumelana ngenkathi belungisa umjikelezo, futhi idilizwa futhi ihlanganiswe. Eqinisweni, isilungiswe kakhulu. Inqobo nje uma uqonda izici zomonakalo zokumelana, akudingekile ukuba uchithe isikhathi esiningi.
Ukumelana kuyisici esiningi kakhulu ezintweni zikagesi, kodwa akuyona ingxenye enezinga eliphezulu lomonakalo. Isekhethi evulekile iwuhlobo oluvame kakhulu lomonakalo wokumelana. Akuvamile ukuthi inani lokumelana libe likhulu, futhi inani lokumelana libe lincane. Ezivamile zihlanganisa izinqamuleli zefilimu ye-carbon, izihlungi zefilimu yensimbi, izihlungi zenxeba lezintambo kanye nezinqamuli zomshuwalense.
Izinhlobo ezimbili zokuqala ze-resistors yizona ezisetshenziswa kakhulu. Esinye sezici zomonakalo wabo ukuthi izinga lokulimala lokumelana okuphansi (ngezansi kwe-100Ω) nokumelana okuphezulu (ngaphezulu kwe-100kΩ) kuphezulu, futhi inani lokumelana eliphakathi (njengamakhulu ama-ohms kuya kumashumi ama-kiloohms) Umonakalo omncane kakhulu; Okwesibili, lapho ama-resistant-resistant-resistant alimala, avame ukushiswa futhi abe mnyama, okulula ukutholakala, kuyilapho ama-resistant-resistance aphezulu engavamile ukulimala.
Ama-Resistors e-Wirewound ngokuvamile asetshenziselwa umkhawulo ophezulu wamanje, futhi ukumelana akukukhulu. Lapho izinqamuleli zenxeba eziyi-cylindrical zisha, ezinye zizoba mnyama noma ingaphezulu liqhume noma liqhekeke, kanti ezinye ngeke zibe nazo umkhondo. Izithako zikasimende ziwuhlobo lwezinqamuli zenxeba zocingo, ezingase ziphuke lapho zishisiwe, ngaphandle kwalokho ngeke kube khona imikhondo ebonakalayo. Lapho i-fuse resistor isha, ucezu lwesikhumba luzophephethwa kwezinye izindawo, kanti ezinye azinawo umkhondo, kodwa azisoze zasha noma zibe mnyama. Ngokusho kwezici ezingenhla, ungagxila ekuhloleni ukumelana futhi uthole ngokushesha ukumelana okonakele.
Ngokwezici ezibalwe ngenhla, singaqale sibheke ukuthi izithasiselo ezimelana kancane ebhodini lesekethe zishise amamaki amnyama, bese ngokwezici ukuthi iningi lama-resistors avulekile noma ukumelana kuba kukhudlwana futhi ukumelana nokumelana okuphezulu. zonakaliswa kalula. Singasebenzisa i-multimeter ukuze silinganise ngokuqondile ukumelana kuzo zombili iziphetho ze-resistor ephezulu ebhodini lesifunda. Uma ukumelana okulinganiselwe kukhulu kunokuphikisana okubizwa ngokuthi, ukumelana kufanele konakaliswe (qaphela ukuthi ukumelana kuzinzile ngaphambi kokuboniswa Ekuphetheni, ngoba kungase kube nezakhi ze-capacitive parallel kumjikelezo, kukhona inqubo yokushaja nokukhipha), uma ukumelana okukaliwe kuncane kunokumelana nokulinganisa, ngokuvamile akunakwa. Ngale ndlela, konke ukumelana ebhodini lesifunda kulinganiswa futhi, futhi ngisho noma inkulungwane eyodwa "ibulawa ngokungalungile", umuntu ngeke aphuthelwe.