線圈電馬達 (電磁感應實驗)

SKU: K226
$60.00
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SKU: K226 Category:

配件:1節7號堿性電池、4顆強磁鐵、1個已成型形狀線圈。

描述

原理:通電線圈會産生磁場(電生磁),磁場的磁性是同性相相斥,異性相吸,線圈就會轉動。

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