This paper discusses the loss of the static-electrical energy in the parallel-connected capacitor and proves by using the method of quivalent circuit that the loss of the statis-electrical energy is equal to the equivalent joule heat in three cases.

• 本文讨论了电容器并联过程中静电能的损失，并应用等效电路的方法证明出静电能的损失在三种情况下都等于等效焦耳热