下列各图能正确反映两个等量正电荷连线中垂线(图中x轴)上各点

下列各图能正确反映两个等量正电荷连线中垂线(图中x轴)上各点电势的分布图是 

答案

B

相关题目

 为了测定实验室中高锰酸钾样品的纯度(杂质不参加反应)
 为了测定实验室中高锰酸钾样品的纯度(杂质不参加反应),取16g该样品加热,完全反应后,得到1.6g氧气,求样品中高锰酸钾的质量分数。
Mr. Grey was the manager of a small office in London. He lived in the country,
Mr. Grey was the manager of a small office in London. He lived in the country, and came to work by train. He liked walking from the station to his office if it was not raining, because it gave him s
的值为(     ) A        B          C        D
的值为(     ) A        B          C        D
I prefer the appearance of the house; however, _____ really made me decide to bu
I prefer the appearance of the house; however, _____ really made me decide to buy it was the beautiful view through the window. A.which          B.what         C.that      
关于纬线的说法,错误的是(    ) A.纬度越高,纬线越
关于纬线的说法,错误的是(    ) A.纬度越高,纬线越短                 B.纬线都是圆圈       C.纬线指示东西方向           
    For many, just taking part in a single marathon is the achievement of a
    For many, just taking part in a single marathon is the achievement of a lifetime. But for Julie Weiss, it has become a    41    routine. She has run 52 marathons-once a week-for the pa
真空中两个相同的金属小球A和B,带电荷量分别为QA=2×10-8C和Q
真空中两个相同的金属小球A和B,带电荷量分别为QA=2×10-8C和QB=4×10-8C,相互作用力为F,若将两球接触后再放回原处,则它们之间的作用力将变为     A
森林遭到砍伐后,我们可能面临下列哪些问题?      ( 
森林遭到砍伐后,我们可能面临下列哪些问题?      (    ) A.水土流失                    B.气候改变 C.生物多样性受损      

最新题目