點解resistance=V/I
回答 (4)
2007-11-04 11:09 pm
✔ 最佳答案
因為by experiment, Resistance 愈大 , 消耗的Voltage 愈多, 而通過的Current 就愈細. 所以就出到 R = V/I
2007-11-03 9:34 pm
Because Current = Voltage/resistance
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