標題:
[10分]電路問題,唔該曬
發問:
http://i150.photobucket.com/albums/s87/mllokloks/phy1-1.jpg求unknow.------solution----------since the 1.5V cell is dircetly across the 5 ohm resistor, I" = 1.5/5 = 0.3AThe voltage across the 10 ohm resistor V = 2 - 1.5 = 0.5V , soI' = 0.5/10 = 0.05... 顯示更多 http://i150.photobucket.com/albums/s87/mllokloks/phy1-1.jpg 求unknow. ------solution---------- since the 1.5V cell is dircetly across the 5 ohm resistor, I" = 1.5/5 = 0.3A The voltage across the 10 ohm resistor V = 2 - 1.5 = 0.5V , so I' = 0.5/10 = 0.05 A ------------------------- 點解計I"既時候,可以唔洗理個2V 更新: 唔明 -,- 更新 2: 唔明點解錦就可以計到0.3A 更新 3: ...
最佳解答:
因爲 10Ω 電阻兩端只有 0.5V 而唔係 2V 圖片參考：http://img7.imageshack.us/img7/7819/phy11.jpg 2009-04-12 21:25:30 補充： I = V / R 1.5 / 5 = 0.3
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