標題:
[Phy]
em problem
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作者:
16479
時間:
2016-7-13 05:52 PM
標題:
em problem
點解唔係B而係A
作者:
antonyluk
時間:
2016-7-20 06:00 PM
Lenz's law. 舊magnet 一開始轉, 個coil就會想左N右S 去oppose個change.
作者:
asd681
時間:
2016-8-30 06:22 PM
thx for sharing
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