电路分析中多余元件的误区

Misunderstanding of RedundantComponents in Circuit Analysis

本文分析了两个误区:①多余元件有可能因为功率过大而影响电路。②功率为零的元件不一定是多余元件。然后介绍了几个对电路毫无影响的元件,最后比较了“多余元件”、“功率为零的元件”、“对电路毫无影响的元件”三者的特点。本文可供讲授电路理论课程的教师参考。

This paper analyzes two misunderstandings:first,redundant components may affect the circuit due to excessive power;second,components with zero power may not necessarily be redundant components.Then we introduces several components that have no influence on the circuit.Finally,we compares the characteristics of redundant components,components with zero power and components that have no influence on the circuit.The discussion in this paper can be used as a reference for teachers who teach the course of circuit theory.