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圖中安培計、電池的內電阻為零,(a)流經安培計的電流為何? (b)若將R4的電阻改為何值?則安培計的讀數為零。[89北聯]
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Posted in 電流電壓與電阻的測量.
Tagged with 克希荷夫定則, 惠司通電橋法, 電阻組合.
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By admin – 2009 年 12 月 29 日
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