把用毛皮摩擦过的橡胶棒带的电荷叫做负电荷。 负电荷一般而言就是电子 与毛皮摩擦后的琥珀所带的电称为负电 一个电子带一个单位的负电荷。 自然界中只有这样两种电荷,美国科学家富兰克林对这两种电荷做出规定:绸子摩擦过的玻璃棒所带电荷叫做正电荷,毛皮摩擦过的橡胶棒所带电荷叫做负电荷。1、电荷之间相互作用规律:同性相斥,异性相吸,大小用库仑定律来计算。2、点电荷作用力为一对相互作用力,遵循牛顿第三定律。3、库仑定律的适用条件:真空中静止点电荷间的相互作用力(均匀带电体间、均匀带电球壳间也可)。
( Positive charge )和 负电荷 ( Negative Charge )的数目是相同的,所以 等离子 的 净电荷 ( Net charge )是零。
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... negative appropriate 降落特征 negative allegation 负电荷 negative curhire 负电流 ...
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... positive e charge 正电荷 negative e charge 负电荷 electric c neutrality 电中性 ...
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Objective: To approach the effect of NDQ on the negative charges of RBC and endothelial cell of young cow in vitro.
目的:探讨尿毒清(NDQ)对小牛红细胞(RBC)膜和小牛内皮细胞膜负电荷的影响。
参考来源 - 尿毒清对红细胞膜和内皮细胞膜负电荷的影响·2,447,543篇论文数据,部分数据来源于NoteExpress
由于这些电子都带负电荷,它们会相互排斥。
As these electrons are negatively charged they will attempt to repel each other.
带负电荷的区域非常大:数百米厚,直径达几千米。
The negatively charged region is large: several hundred meters thick and several kilometers in diameter.
在暴风云的形成过程中,带正电荷的粒子与带负电荷的粒子相互分离。
The separation of positively and negatively charged particles takes place during the development of the storm cloud.
The center of excess negative charge on all of the dipoles is at the very center of the molecule.
多出来的键,的负电荷中心都集中在,分子的正中间。
So, an energy deficit, accelerating charge, the accelerating negative charge, because it's the negatives that are orbiting the positive center.
能量的损失,加速电荷,加速的负电荷,因为这是负电荷,围绕在正电荷中心的周围。
Let's re-draw this, so it looks a little bit neater, where we have a triple bond in the middle instead, and again, we need our negative 1 charge there.
让我们重写这个,这样看起来更整洁一点,我们有一个三键在中间,同样地,我们这里需要一个负电荷。
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