端电压与电流有确定[[函数]]关系，体现电能转化为其他形式能力的二端器件，用字母R来表示，单位为[[欧姆]]Ω。实际器件如灯泡，电热丝，电阻器等均可表示为电阻器元件。<ref>[http://www.360doc.com/content/18/0423/08/11935121_747978684.shtml 电阻器的功能和分类],个人图书馆网，2018-04-23</ref>

=='''主要技术参数'''==

[[ File:水泥电阻器RQ型号.jpg|缩略图|250px|[https://image.so.com/view?q=%E7%94%B5%E9%98%BB%E5%99%A8%E7%9A%84%E5%9E%8B%E5%8F%B7&src=srp&correct=%E7%94%B5%E9%98%BB%E5%99%A8%E7%9A%84%E5%9E%8B%E5%8F%B7&ancestor=list&cmsid=6e573db8aa345ec4b9f16be4dbc1fa17&cmras=0&cn=0&gn=0&kn=0&fsn=60&adstar=0&clw=254#id=2bf4ed0e930e0b15161585923132b4cc&currsn=0&ps=59&pc=59 原圖鏈接][http://spro.so.com/searchthrow/api/midpage/throw?ls=s112c46189d&lm_extend=ctype:3&ctype=3&q=%E7%94%B5%E9%98%BB%E5%99%A8%E7%9A%84%E5%9E%8B%E5%8F%B7&rurl=http%3A%2F%2Fcn.made-in-china.com%2Fshowroom%2Fshxec10%2Fproduct-detailobZxAwJYYucT%2F%25E6%25B0%25B4%25E6%25B3%25A5%25E7%2594%25B5%25E9%2598%25BB%25E5%2599%25A8RQ%25E5%259E%258B%25E5%258F%25B7.html&img=http%3A%2F%2Fimage.cn.made-in-china.com%2F2f0j01MCAtRdaggIcU%2F%25E6%25B0%25B4%25E6%25B3%25A5%25E7%2594%25B5%25E9%2598%25BB%25E5%2599%25A8RQ%25E5%259E%258B%25E5%258F%25B7.jpg&key=t01e77835990c0de2c9.jpg&s=1582697460281 来自搜狗]]]