ＰＨＹ ｍｃ答案

920826chan

我想問下19條點解係c??

7ond

第6條係咩 ==
呢份mc幾多先a到 ==

只愛您一個

錯啦,雖然佢唔係最光
但係個resistance都係冇變
︴紙醉金迷@HeE 發表於 20-4-2009 13:55

係..所以就只有個resistance係可以用泥計數...
如果要第2個bulb work in rated value..最大就要比6v佢..咁姐係第一個bulb都係6v
I=6/6
=1A
第2個bulb 既I=6/4=1.5A

hugotwy

一個bulb要12姐
係咪一定要比12v佢??
同埋current流幾多流去邊係決定係resistance

re#16
different mass of water at the same temperature have the same amount of internal energy
唔同mass又點會有一樣既inte ...
︴紙醉金迷@HeE 發表於 20/4/2009 13:49

internal energy唔係KE+PE咩,MASS大左會點??

cla981085

41條代數去計



Ans: A

7ond

41條代數去計

306071

Ans: A
cla981085 發表於 20-4-2009 13:59

其實parallel同series已經做過無數次係四份一 -.-

只愛您一個

25# cla981085
嗯..係WO..當左佢short左circuit tim..

︴紙醉金迷@HeE

我想問下19條點解係c??
920826chan 發表於 20-4-2009 01:55 PM

19題係a= =''
我都錯左
陰死>''<

REQUIEM

一個bulb要12姐
係咪一定要比12v佢??
同埋current流幾多流去邊係決定係resistance

re#16
different mass of water at the same temperature have the same amount of internal energy
唔同mass又點會有一樣既inte ...
︴紙醉金迷@HeE 發表於 20-4-2009 13:49

如果main current係3.5A既話
咁6V個bulb唔係有2.1A 大過佢rated value
唔知岩唔岩囧..

7ond

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