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1第一章electricfield电场（强度）electricpotential电势potentialdifference电势差charge电荷volumechargedensity体电荷密度term术语find求uniformlydistribute均匀分布locatedat位于circulararc圆弧semicircle半圆radius半径magnitude大小，数量direction方向conducting导电的sphericalshell球壳positive正negative负value值groundedsphere接地球vacuum真空2electrostaticpotential静电势第二章/第三章sphericalcapacitor球形电容器concentricsphericalshells同心球壳capacitance电容量reduce简化parallel-platecapacitor平板电容器dielectrics电介质area面积separation间隔，间距battery电池disconnected断开连接slab厚板thickness厚度dielectricconstant介电常数，电容率calculate计算energy能量neglect忽略ignore忽略endeffects边缘效应edgeeffects边缘效应3surfacechargedensity面电荷密度interface分界面cylindricalcapacitor圆柱形电容器nonconductingmaterial非导电材料force力fringingfields边缘场第四章Current电流steadycurrent稳恒电流currentdensity电流密度resistor电阻器resistance电阻resistivity电阻率conductivity电导率wire电线assume假定，设想truncated切去顶端的right-circularcone正圆锥altitude高度length长度taper锥度，坡度4crosssection横截面specialcase特殊情况closedcircuit闭合电路magneticdipolemoment磁偶极矩mass质量lead导线，铅第五章/第六章magneticfield磁场tension张力rectangularloop矩形回路Nclose-packedturnsN密绕匝coilofnturnsn匝线圈rotate旋转longstraightwire长直导线copperrod铜棒horizontalrails水平轨道coefficientofstaticfriction静摩擦系数vertical竖直，垂直slide滑动switch电键，开关function函数，功能5coaxialcable同轴电缆cylinder圆柱体perunitlength单位长度self-inductance自感mutualinductance互感diameter直径perpendicularto垂直于angularvelocity角速度externallyappliedtorque外加力矩maintain保持rotation旋转transienteffects暂态效应axis轴beamofparticles粒子束momentum动量impingeon撞击focusto聚焦于approximation近似scatter散射focallength焦距第八章6Power功率Cycle周期Qualitatively定量地Semi-infinite半无限electricalnetwork电路网络inductance感应terminal终端alternatingvoltage交流电压winding绕组transformer变压器第九章Circular圆形的Voltage电压Retardation延迟Maxwell’sequations麦克斯韦方程组Symmetry对称region区域discontinuity不连续surfacecurrent面电流7emit发射pulse脉冲frequency频率dispersion扩散interstellarmedium星际介质measure测量distance距离hint暗示response响应