By means of two ideal physical models, this paper discusses the exchange of electrical field energy and magnetic field energy with mechanical work and energy conservation under the circumstances of constant electrical field E and constant magnetic fluxφ, and constant current and voltage.
通过两个理想的物理模形,分别讨论了电场E和磁通量Φ变,及稳恒电流和稳恒电压的情况下,电场能量和磁场能量与机械功之间的相互转换,以及能量守恒关系。