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範例:二極體與基本電路[90預試卷]

在下圖一的電路中，D1和D2為兩個相同的二極體，R為一電阻。已知二極體的電流電壓特性曲線如圖二所示，今測得電阻兩端的電壓為4V，則電阻的耗電功率約為:(A)1mW (B)2mW (C)4mW (D)8mW (E)16mW。[90大考中心]
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Posted in 指考預試卷, 現代科技簡介.

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By admin – 2010 年 05 月 18 日

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