铜漆包线线径0.67mm长度0.19m电阻值怎么算?
问题描述:
铜漆包线线径0.67mm长度0.19m电阻值怎么算?
答
先算出一米的电阻=电阻率/截面积=0.01709/(3.14159*0.67*0.67/4)=0.04847欧姆/米.然后0.19m的0.67铜漆包线的电阻就是将米电阻乘以0.19=0.04847*0.19=0.0092欧姆.