9-1静电场中的导体 一、静电感应静电平衡条件

9-3静电场中的电介质 一、电介质对电容的影响相对电容率

9-4有介质时的高斯定理

9—5静电场的能量 一、电容器的电能

10—1电流密度 一、电流 电流为通过截面S的电荷随时间的变化率

一、等温过程 特征T常量

1. The discovery of electrification OThe phenomenon of electrification Glass rod is rubbed with silk-positive Amber rod is rubbed with fur--negative

Electrical Potential Ener and Electric Potentia 17.1 Electrical potential energy and electric potential 1. Electric force is conservative force Coulomb's force:

Electric Fields 918.1 Conductors in electric field 1. Conductors A conductor is a material in which the electrons at the outer periphery of an atom have no great affinity for any particular individual

26.1 Some important discoveries at the end of the 20th century a. Measured the charge of the cathode rays; b. Make a static electric deflection of the cathode rays; . Measured the charge to mass ratio of the cathode rays;