电场
场强：描述电场对电荷施力的矢量
点电荷场强：球对称性
电场强度叠加：场强的矢量和
电场强度通量 ：通过某个面的电场线条数
电容
孤立导体电容:<span class="equation-text" contenteditable="false" data-index="0" data-equation="C=Q/V"><span></span><span></span></span>
电容器
平行板电容器:<span class="equation-text" contenteditable="false" data-index="0" data-equation="C=\epsilon_0 S/d"><span></span><span></span></span>
圆柱形电容器:<span class="equation-text" contenteditable="false" data-index="0" data-equation="C\approx\epsilon_0 S/d"><span></span><span></span></span>
球形电容器:<span class="equation-text" contenteditable="false" data-index="0" data-equation="C=4\pi\epsilon_0R_1"><span></span><span></span></span>
电容的串并联
串联：<span class="equation-text" contenteditable="false" data-index="0" data-equation="{1 \over C}={1 \over C_1}+{1 \over C_2}+...+{1 \over C_n}"><span></span><span></span></span>
并联:<span class="equation-text" contenteditable="false" data-index="0" data-equation="C=C_1+C_2+...+C_n"><span></span><span></span></span>
静电场中的电介质
<span class="equation-text" contenteditable="false" data-index="0" data-equation="E={E_0 \over \epsilon_0}"><span></span><span></span></span>
电结构
极化
强度矢量
