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滑动变阻器分压法的原理

2025-04-01 00:39:10

推荐回答（1个）

回答1：

滑动变阻器简单的分压接法，滑片把滑动变阻器转化成两个电阻串联。
分压接法就是把用电器（即R）和滑动变阻器一侧电阻并联，再和滑动变阻器另一次电阻串联。
调整滑片，即可改变两侧电阻比例，也就是改变了串联两个部分的电压，故改变电阻即使改变电压,，到了分压作用。

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