惠斯登電橋之相關疑問 - 國營工作討論

By Damian
at 2018-10-29T21:51
at 2018-10-29T21:51
Table of Contents
https://i.imgur.com/quCzTla.jpg
如圖
R2*R6=R3*R5
則R4沒有電流流過
我想問的是
電阻R4沒有電流流過
一個電阻沒有電流流過
就視為導線
為甚麼書上寫
把R4拔掉(開路)
也可以
請大家開釋一下
謝謝
--

如圖
R2*R6=R3*R5
則R4沒有電流流過
我想問的是
電阻R4沒有電流流過
一個電阻沒有電流流過
就視為導線
為甚麼書上寫
把R4拔掉(開路)
也可以
請大家開釋一下
謝謝
--
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國營
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