關于(yu)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)相信大家都不會太生疏(shu)，在咱們初中(zhong)的(de)物理課程里就有學關于(yu)旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)這(zhe)(zhe)一(yi)(yi)塊的(de)知識，讓咱們認識了(le)電(dian)(dian)(dian)(dian)壓、旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)、電(dian)(dian)(dian)(dian)流(liu)、功率之間(jian)的(de)關系，也(ye)學習了(le)旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)的(de)效果與作業原理.為了(le)使經過用電(dian)(dian)(dian)(dian)器的(de)電(dian)(dian)(dian)(dian)流(liu)不超(chao)越(yue)額(e)定(ding)值(zhi)或(huo)實踐作業需要的(de)規定(ding)值(zhi)，以確(que)保用電(dian)(dian)(dian)(dian)器的(de)正(zheng)常作業，一(yi)(yi)般可在電(dian)(dian)(dian)(dian)路(lu)中(zhong)串(chuan)聯一(yi)(yi)個可變旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)。當(dang)(dang)改動這(zhe)(zhe)個旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)的(de)巨細(xi)時，電(dian)(dian)(dian)(dian)流(liu)的(de)巨細(xi)也(ye)隨之改動。當(dang)(dang)改動這(zhe)(zhe)個旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)的(de)巨細(xi)時，電(dian)(dian)(dian)(dian)流(liu)的(de)巨細(xi)也(ye)隨之改動。咱們把這(zhe)(zhe)種(zhong)可以限制電(dian)(dian)(dian)(dian)流(liu)巨細(xi)的(de)旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)叫做限流(liu)旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)。在給蓄電(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)的(de)電(dian)(dian)(dian)(dian)路(lu)中(zhong)，為了(le)使充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)不超(chao)越(yue)規定(ding)值(zhi)，可在電(dian)(dian)(dian)(dian)路(lu)中(zhong)接入限流(liu)旺(wang)(wang)(wang)詮(quan)合(he)(he)(he)(he)(he)(he)金電(dian)(dian)(dian)(dian)阻(zu)(zu)。

充電過程中，恰當調理接入旺詮合金電阻的巨細，可使電流的巨細保持穩定。再如在可調光臺燈的電路中，為了操控燈泡的亮度，也可在電路中接入一個限流旺詮合金電阻，經過調理接入旺詮合金電阻的巨細，來操控電路中電流的巨細，然后操控燈泡的亮度。咱們把這種可以限制電流巨細的旺詮合金電阻叫做限流旺詮合金電阻。為使經過用電器的電流不超越額定值或實踐作業需要的規定值，以確保用電器的正常作業，一般可在電路中串聯一個可變旺詮合金電阻。