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>動量在什麼性質的collision都是守恆,只要no external force acting on the system
>在同一溫度下, KE 相同, 3種形態有不同pe
>電勢(potential) = 電的potential, 好抽象,好難解析
總之Potential X charge = potential energy
potential difference可以表示一個charge在兩點的相對能量高低
>在一點上的電勢 就即係 一個電勢......跟據reference而定
>(Young's double-slit experiment)中,能量仍然守恆,destructive interference的energy去左constructive interference度,有redistribution of energy. but total energy is conserved.
->電路接地後=short circuit=電流會無限增加,直到燒fuse.
以避雷針來講,會直到electric spark的energy用晒為止.
[ Last edited by [S]【YU】 on 2006-3-27 at 11:28 AM ] |
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