Report copyright - 電磁感應與變壓器實驗 - teacher.yuntech.edu.twteacher.yuntech.edu.tw/~fengcl/exp/5/electromagnetic.pdf · 圈,線圈會產生如圖(1a)所示的電流,其建立的磁場用以阻止磁棒的運動。若以磁
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