電阻－燈泡 物理題
回答 (1)
2014-03-13 3:53 pm
✔ 最佳答案
I suppose you refer to an incandescent light bulb (白熱燈泡).After the bulb is turned on for some time, its temperature rises because of current heating. As such, the resistance of the bulb filament becomes higher than when the bulb is just turned on.
收錄日期: 2021-04-21 22:39:00
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140313000051KK00018