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电阻

出自维基百科，自由个百科全书

勒电磁学里，电阻是一个物体对于电流通过个阻碍能力。假设箇物体具有均匀截面面积，则渠个电阻搭电阻率、长度成正比，搭截面面积成反比。

取自“https://wuu.wikipedia.org/w/index.php?title=电阻&oldid=226207”
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