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赫赫，全还给初三物理老师了吧？热的时候电阻大，所以灯经常是刚一点着的时候坏。
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Last Updated: 2002-1-14
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初级问题：加拿大100W灯泡的电阻是多少？1000W电炉丝的电阻是多少？（我用数字万用表测出来的是灯泡11欧，电炉45欧，好象不对！看来我是不会用，谁能指点，谢了）
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