Z6-03-03 电荷<img src="https://static.zxtiku.com/wangke/imgs/topic/3fc5d74a902920d7b501c446ccc8b266.jpg"/>和<img src="https://static.zxtiku.com/wangke/imgs/topic/fd28d26e095d46a917d98d1178946511.jpg"/>在真空中的分布如图Q_02233所示, 其中<img src="https://static.zxtiku.com/wangke/imgs/topic/6afd6d13cd6167abd14123dc750a06c5.jpg"/>是半径为<img src="https://static.zxtiku.com/wangke/imgs/topic/80e75207bf6b0de3f0f8aa4fbd4ebb60.jpg"/>的均匀带电球体,<img src="https://static.zxtiku.com/wangke/imgs/topic/7741c54ceda2d49f3f39fdb68d5f5673.jpg"/>为闭合曲面，由于通过闭合曲面<img src="https://static.zxtiku.com/wangke/imgs/topic/7741c54ceda2d49f3f39fdb68d5f5673.jpg"/>的电通量<img src="https://static.zxtiku.com/wangke/imgs/topic/fe092d1f68b211b39e985793719ef3ce.jpg"/>与<img src="https://static.zxtiku.com/wangke/imgs/topic/a6be764ce020b94c2940afe47a82cd8b.jpg"/>和<img src="https://static.zxtiku.com/wangke/imgs/topic/fd28d26e095d46a917d98d1178946511.jpg"/>有关，所以电场强度<img src="https://static.zxtiku.com/wangke/imgs/topic/05c85170904bc1ec54ce13182d63b331.jpg"/>是<img src="https://static.zxtiku.com/wangke/imgs/topic/a6be764ce020b94c2940afe47a82cd8b.jpg"/>和<img src="https://static.zxtiku.com/wangke/imgs/topic/fd28d26e095d46a917d98d1178946511.jpg"/>电荷产生的。<img src="https://static.zxtiku.com/wangke/imgs/topic/4eab71d6a3d7ad831cb55921bff5e92c.jpg"/>