························【高二物理】详细解释啊

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/13 05:31:23

························【高二物理】详细解释啊
························【高二物理】详细解释啊

························【高二物理】详细解释啊
Q为空腔导体,根据静电平衡的特点:内部场强处处为0,A正确
由于导体接地,根据静电平衡特点:静电平衡状态下的导体为等势体,接地电势为0,B正确
导体外表面由于静电感应产生了与源电荷相反的电荷,即负电荷.C错误
根据静电屏蔽(或者静电平衡特点),导体内部无电荷,D正确

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