再谈平行板电容器内介质极化的功能过程

A Further Discussion about the Process of the Work and Energy of the Dielectric Polarization in the Parallel Capacitor

通过介质在电容器中所受横向张力对外做功的计算,利用热力学第一定律求得介质在极化过程中无偶极子动能的增加,从而找到介质插入电容器后电能损失的原因:转变成机械能.

By the calculation on the work about the transversal tension of the dielectric in the parallel capacitor, and the first law of the thermodynamics, we find no increase in the kinetic energy of the dipole, and the diminish of the electric energy is converted into mechanical energy when dielectric is put into capacitor.