11-12高二·全国·课时练习
名校
1 . 如图所示虚线为电场中的一簇等势面,
、
两等势面间的电势差为10
,且
的电势高于
的电势,相邻两等势面电势差相等,一个电子在电场中通过的轨迹如图中实线所示,电子过
点的动能为8
,它经过
点时的动能为________
,电子在
点的电势能比在
点的电势能________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35371cf975cab99bf5569a4e6042918d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35371cf975cab99bf5569a4e6042918d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/2018/12/11/2094474175668224/2095749840494592/STEM/ebaa6223f85549e4a336a33a7b23e042.png?resizew=101)
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2012-11-12更新
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935次组卷
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6卷引用:2016-2017学年宁夏石嘴山三中高二上学期10月考物理卷