Electric Charge and Electric Field (id: 24a8aa339)

本题目来源于试卷: Electric Charge and Electric Field，类别为 IB物理学

[填空题]
A 3.0-g copper penny har:/s85 d8lt*bscspb* eed; mas a posix( s/qbk kn(.g)bh-n ktive charge of $38\mu C$. What fraction of its electrons has it lost?    $\times {10}^{-10}$

参考答案: 2.9±2%


本题详细解析:

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