作者查詢 / abc2090614
作者 abc2090614 在 PTT [ Physics ] 看板的留言(推文), 共24則
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2F→:V=IR可以用的情況是你確定能量真的被電阻吃掉的時候09/16 13:58
3F→:說不定那是個馬達還燈管之類的, 電阻就不能那樣算囉09/16 13:59
4F→:串聯數顆電池其實就是一次多踢電子屁股幾腳的意思...09/16 14:00
1F推:把v寫成4-velocity, say V 然後用V=lambda(-v)V' 作09/16 14:13
2F→:lambda就是lorentz tran matrix09/16 14:13
3F→:打錯了 lambda(-u)才對09/16 14:14
4F推:GPS的那些同步衛星等於每天都在作這個實驗09/09 07:28
3F推:點電荷只是數學上的概念吧..singularity只是方便算而已05/28 11:54
5F→:這題是Griffiths裡的例題 其實用Q去算也是可以的02/03 18:59
6F→:只是要多加一項02/03 18:59
3F→:快去買布丁...06/27 12:15