電子 入磁場問題
2012-01-28 6:33 pm
又或者在垂直既磁場中 一條導線有固定既電勢差 電子流動方向與磁場 垂直
咁電子既偏轉路徑 係咪又係 圓周運動 ,right?咁電流咪停滯不前囉?(因為每粒電子都在正圓周運動 )
但係實際上電子應該不斷通過,先會有電流架wo.....
如果電子通過垂直磁場時 電子既偏轉路徑 係圓周運動 ,right? 就係因為電子圓周運動先會有電子积聚 繼而會出現霍耳效應?
回答 (1)
2012-01-29 1:25 am
✔ 最佳答案
Electrons flowing in a solid conductor are obstructed by the atoms of the conductor and their paths are not continuous. Electrons constantly collide with atoms and change their directions of motion.Thus, even the electrons traverse short circular arcs under the action of magnetic field, they could never be able to complete a circle before making collisions with conductor atoms.
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120128000051KK00173