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作者 PTTpttPTpt 在 PTT [ Physics ] 看板的留言(推文), 共95則
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3F推:照1樓的說法是,找一個已知重量體積的圓球,將你要測黏05/04 18:47
4F→:度的液體放入一個很高的量筒,當然那顆球要能放進去05/04 18:47
5F→:球整個進入液面以下之後開始用碼表測量球體下降固定距05/04 18:48
6F→:離的時間,或者是固定時間下降的距離。05/04 18:49
1F推:你跟地球之間就是迴路了阿...地球等同接地端,零電位。05/04 18:51
2F→:要形成電流只要有"電壓差"就可以了。05/04 18:52
1F推:中肯04/29 05:53
3F推:c就是光速沒錯,之所以多了一個c是因為這條公式是用04/28 02:15
4F→:CGS制(公分公克秒)來定義的,才會跟MKS制(即SI制)相差04/28 02:16
5F→:了一個光速分之一倍。04/28 02:16
1F推:Z=jwL,這是電感的阻抗,你是否量到的是感抗?04/23 23:29