- 問題詳情:某課外小組的三位同學想要測量以下三種電池的電動勢和內電阻:Ⅰ.R20(1號)乾電池:電動勢約為1.5VⅡ.R6(5號)乾電池:電動勢約為1.5VⅢ.某種鋰電池:電動勢約為20V他們可選擇的部分器材有:A.電壓表(量程3V時內阻約3kΩ;量程15V時內阻約15kΩ)B.電阻箱(阻值範圍0~999Ω)C.電阻箱(阻值範圍0~...
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- Anewcolourplastictrademarkdesignfortin-baseoftheR20typemoisture"resistantbatteryusedinsteadoftraditionalpapertrademarkwasdiscussed."Methods:Thewithin-runandbetween-dayqualitycontroldetectionwiththeliquidisdoneonR20searvlawl/hoardauto-hemorheologica...
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