【多选题】关于静电场的高斯定理,下列说法正确的是【图片】
【多选题】关于静电场环路定理,下列哪些说法是正确的
B.
静电场场强沿闭合路径的线积分不一定都等于0;
C.
静电场环路定理和静电场高斯定理,是两个彼此独立的定理。
D.
根据静电场环路定理,静电场场强对闭合面的面积分取决于该面所包围的电荷电量。
【简答题】选择方框内的词的适当形式填空,每词只能用一次。 go do help study look have sell be like find 1. I can _____ my watch. 2. They _____ me very much. 3. Mike _____ hard in class. 4. The workers in the shop _____ very friendly. 5...
【单选题】在静电场中,关于场的对称性、高斯定理、静电力,下列说法正确的是 [ ]
A.
若静电场的分布不具有对称性,则高斯定理不成立
C.
两个点电荷之间的作用力大小为 F ,当第三个点电荷移近时,两个点电荷之间的作用力大小仍为 F
D.
有限长均匀带电直线的场具有轴对称性,因此可以用高斯定理求出空间各点的场强
【多选题】关于静电场环路定理,下列哪些说法是正确的
B.
静电场场强沿闭合路径的线积分不一定都等于0,还与场强分布及闭合路径的大小形状有关。
C.
静电场环路定理和静电场高斯定理,是两个彼此独立的定理。
D.
根据静电场环路定理,静电场场强对闭合面的面积分取决于该面所包围的电荷电量。
【判断题】“狐假虎威”中的“假”读作“jià ”,可以组词:假期。( )
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【简答题】Text ysis The text is about the influence of e-commerce. The main idea is that online trade has revolutionized the way we sell or buy things as well as brought us some new problems. The text can b...
【简答题】Complete the sentences with the proper forms of the given words. 1. Some top students _____(send) to study in foreign countries once a year. 2.More and more schools ___________(build) here later. 3. W...