我想問 Q1 :::: Electrons 係咩 flow from negative terminal to possitive terminal ? 咁 current 右係由咩 terminal 去咩 terminal 呢 ?
Q2 ::: 係唔係無論由 switch 去 battery, bulb 去 ammeter,,, battery 去 ammeter, switch 去 bulb 都要 positive 對positive, negative 對 negative ?
electric circuit ,,, Serious Concept Problems!!!
2008-10-26 9:47 pm
回答 (1)
2008-10-26 11:46 pm
✔ 最佳答案
Q1. Current 的方向跟electron的方向相反, 所以current是由positive terminal to negative terminal.Q2. 如果是voltmeter才是positive對positive,negative對negative,因為voltmeter你安裝的方法是parallel to circuit. 而ammeter的安裝方法是用 series to circuit, 所以應該是positive to negative, negative to positive.
希望幫到你啦.
收錄日期: 2021-04-26 22:22:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081026000051KK01013