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範例:二極體與基本電路[91指考]

二極體D、小燈泡L和電動勢為1.5V的電池(內電阻可以不計)組成如圖所示的電路．此二極體的電流－電壓特性關係如附表所示．已知通過小燈泡的電流為2.0mA，則此燈泡的耗電功率約為何? (A)0.8mW (B)1.6mW (C)2.2mW (D)2.5mW (E)3.0mW．[91指定考]
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Posted in 歷屆物理考題, 現代科技簡介.

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By admin – 2010 年 05 月 18 日

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