point charge meaning in Chinese
点电荷
电荷接触点
集中药包
Examples
- Electric potential of a dielectric ball in the electric field of a point charge
介质球在点电荷电场中产生的电势分布规律 - Appication of electric image to the system of a point charge in or out of a hollow conducting sphere
电像法推广于导体球腔及腔中存在点电荷的系统 - Quantitative relations between electric potential energy and electric field energy of continuous charged body and point charge system
连续带电体和点电荷系的电势能与电场能的定量关系 - （ the force between two point charges at rest is directly proportional to the product of the charges and inversely proportional to the square of the distance between them
在真空中，两个静止的点电荷之间的相互作用力的大小与两电荷所带电量的乘积成正比，与它们之间距离的平方成反比，作用力的方向沿两电荷的连线。 - But due to the difficulties of the theoretical calculation and the limitation of the technique of image display , only some two - dimensional graphs of electromagnetic field of a planar set of point charges or symmetrically and uniformly charged bodies , which ignores the boundary effect , are introduced in the present electromagnetics teaching materials , which brings much incovenience for the acquaintance of the electrostatic field
然而,由于受理论计算和图象显示技术等因素的限制,目前的电磁学教材中,通常只能给出平面分布的点电荷系或具有较强对称性、忽略边界效应的带电体的电力线和等势线的二维平面图,这给静电场分布的感性认识带来了一定不便。