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速度与机械运动

> 有两个相同的金属小球甲和乙，已知甲球带负电，乙球不带电，将它们用金属线相连时 A.有电流从甲流向乙 B.有电流从乙流向甲 C.有电流，但方向无法确定 D.没有电流

问题：

发布时间：2024-09-10

有两个相同的金属小球甲和乙，已知甲球带负电，乙球不带电，将它们用金属线相连时

A.有电流从甲流向乙
B.有电流从乙流向甲
C.有电流，但方向无法确定
D.没有电流

参考答案：

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