Chapter 21 potential 第八章静电场 结论:静电场力做功与路径无关. The work done by electrostatic force is path independent The electrostatic force is a conservative force. 静电场是保守场Chapter 21 potential 第八章静电场 The work done by electrostatic force is path independent. The electrostatic force is a conservative force. 结论：静电场力做功与路径无关. 静电场是保守场