File:【中央大學】物理演示實驗－看見磁力線 Visible Magnetic Field Line.webm
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Size of this JPG preview of this WEBM file: 800 × 440 pixels. Other resolutions: 320 × 176 pixels | 854 × 470 pixels.
Original file (WebM audio/video file, VP8/Vorbis, length 2 min 16 s, 854 × 470 pixels, 406 kbps overall, file size: 6.56 MB)
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中文：目的
磁力線是人類想像出來描述磁場的抽象概念，如今我們用簡單的器材將磁力線以立體的方式呈現在我們面前。 實驗 實驗裝置： 壓克力盒：從壓克力方盒中鑽兩個洞，黏上一圓管，盒內灌入油液及鐵粉。 強力磁鐵：數個長型圓柱狀強力磁鐵。 封閉磁力迴線： 先將壓克力方盒均勻搖動，使其內鐵粉均勻分布於油液中。 將方盒平放後，立即插入磁鐵棒。 觀察盒內鐵粉磁力線成型的過程。 相斥磁力線分布： 先將壓克力方盒均勻搖動，使其內鐵粉均勻分布於油液中。 將方盒平放後，將兩根鐵棒以同極相對，從兩旁分別插入盒內。 觀察盒內鐵粉磁力線成型的過程。 原理思考 什麼是磁力線的概念?它跟磁場又是什麼關係呢？ 更多資訊請參考https://goo.gl/1rLWrA 歡迎聯絡我們：ncusciedu@g.ncu.edu.tw（中央大學科學教育中心） |
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| Source | YouTube: 【中央大學】物理演示實驗－看見磁力線 Visible Magnetic Field Line – View/save archived versions on archive.org and archive.today |
| Author | 中央大學科學教育中心活動頻道 |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:16, 20 June 2018 | 2 min 16 s, 854 × 470 (6.56 MB) | Vislupus (talk | contribs) | Imported media from https://www.youtube.com/watch?v=VS37udpo7TI |
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