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具有互感系数的电路可化成为不含有互感系数的等值电路。這等值电路通常用下列两种方法求出: (一) 先寫出电流及电壓的聯立方程式,然後重新排列各个项,使適合於新的等值电路。 (二) 先假定一等值电路,并假设电路中的参数,然後比较各个电壓及电流方程式,以確定等值电路中的参数。上面两项规则不够快捷,本文根据下面的推理提出两项简捷的规则。
Circuits with mutual inductance can be turned into an equivalent circuit without mutual inductance. This equivalent circuit is usually obtained by the following two methods: (A) first write the simultaneous equations of current and voltage, and then rearrange the various items, so that suitable for the new equivalent circuit. (B) First assume that an equivalent circuit, and the assumption of the circuit parameters, and then compare the various voltage and current equations to determine the equivalent circuit parameters. The above two rules are not fast enough, this article based on the following reasoning put forward two simple rules.