八年级物理下册电功率如何解方程题任列一列,
6v/R1+6v/R2=1A和6v/(R1+R2)=0.25A 解方程
人气：456 ℃ 时间：2019-10-11 12:36:50
解答
(6R2+6R1)/R1•R2=1
6/(R1+R2)=0.25=1/4
(6R2+6R1)=R1R2
6=1/4R1+1/4R2
得:R1•R2=144
R1+R2=24
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