摘要
从平行板电容器在充入介质前后场能的变化出发 ,利用虚功原理 ,得出了计算平行板电容器中介质受力的一种方法 ;又从电介质受力的微观机制出发 ,利用库仑定律 。
We get a way of calculating the force of dielectric in the parallel plate condenser by analyzing the difference of field power when there has dielectric or not in the parallel plate condenser and using principle of virtual work.And we get the other way by analyzing the microscopic structure of dielectric using Coulomb′s Law.
