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第三次作业 1、 导体对 阻碍作用的大小称为电阻,电阻越大表示对电流的阻碍作用越大。 2、 电阻按照阻值特性分为固定电阻、可调电阻和 。 3、 电阻的标识分为 和色环法两种方法。 用色环表示电阻参数分为 和五色环两种方法。
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