与一般方法不同，本文利用电通量概念及电场叠加原理，推导出电场能量密度的普遍表达式。方法简明。
This method is different from usual method, we use the concept of electric flux and principle of superposition for the electric field.
文章以偏心圆柱电容为例，通过构造一个满足边界条件的势函数，进而得到相应的静电场和电场能量密度。
With an example of eccentric column capacity, a potential function that satisfies the boundary conditions is formed to obtain corresponding electromagnetic field and its energy density.
导体的电容；电容器。电场的能量和能量密度。
Capacitance of conductor capacitor electric field energy and energy density.
第16周点电荷系的能量；带电电容器储存的能量；电场的能量和能量密度；应用举例。
Week 16 Energy of point charges system, energy of electric field in capacitor , energy and its density of electric field.
第13周导体的电容；电容器。电场的能量和能量密度。
Week 13 Capacitance of conductor, capacitor, electric field energy and energy density.
从光的波粒二象性出发，分别根据光波的能量守恒定律及光子出现的概率密度与电场强度的平方成正比，推导出光吸收的朗伯定律。
From the wave-particle duality, we can deduce the Lambert law of light absorption according to the light waves energy and probability of photon.
从光的波粒二象性出发，分别根据光波的能量守恒定律及光子出现的概率密度与电场强度的平方成正比，推导出光吸收的朗伯定律。
From the wave-particle duality, we can deduce the Lambert law of light absorption according to the light waves energy and probability of photon.
应用推荐