原來係咁...
祝你身體健康
咁算咩意思?
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多謝你解答我ge問題....唔係衰野..
唔想身體健康就祝你學業進步la.. 原帖由 L.K. 於 15-4-2008 17:03 發表 http://www.nakuz.com/bbs/images/common/back.gif
多謝你解答我ge問題....
唔係衰野..
唔想身體健康就祝你學業進步la..
得罪當權者會好大鑊[]
早排Adamsteve 曾承認 係佢頭號打手 []好黑暗[] 原帖由 piyopiyo 於 15-4-2008 14:07 發表 http://www.nakuz.com/bbs/images/common/back.gif
04年?=.=...點解我無印象ge...我前日先做完04 =.=...
正常...
因為這是03 CE PP= ="
原帖由【YU】於 15-4-2008 16:20 發表 http://www.nakuz.com/bbs/images/common/back.gif
commutator is not required in this application, because the direction of current flow makes no difference.
We need a commutator only when we want to make a DC generator.
So the essential parts should be the coil and magnet only.
那是在問essential component of motor,唔係b)果個發電機
DC motor 同 DC generator 都要 commutator
所以commutator 都 accept
(carbon brush, iron core都ok)
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