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物理影片:發光的鉛筆芯(弧光燈)


通電壓的鉛筆芯兩端,靠近時造成之間的氣體放電,即氣體被游離激發而能階躍遷,而放出強光.
P.S.因通有高電壓且高熱,需小心操作. 

參考資料:
*來源 Youtube:  http://www.youtube.com/watch?v=MEWwjE_WlW0 (by cityreclu)
*物理學科中心:
http://210.60.107.4/physical/physdemo/select/s6-1/s6-1.htm  (楊士模老師)
*維基百科:http://zh.wikipedia.org/wiki/%E5%BC%A7%E5%85%89%E7%87%88
 (弧光燈)

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Posted in 電磁學.

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4 Responses

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  1. AkonHsu says

    請問觸發這個效應的電壓要多少伏特?

  2. meyyycow5266 says

    終於知道工地的工人操做的機器在亮甚麼了!

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