导体的横截面
The cross-section of a conductor
以上为机器翻译结果，长、整句建议使用 人工翻译 。
导体的电阻与其长度成正比，与其横截面积成反比。
The resistance of a conductor varies directly with its length, conversely with its cross-sectional area.
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这表明，导体电阻的大小与导体横截面的大小成反比。 收藏。
This shows that the resistance of an electric conductor is inversely proportional to its cross-sectional area.
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