R1=2Ω,R2=4Ω,R3=6Ω,三者并联则I1,I2=?
R1=2Ω,R2=4Ω,R3=6Ω,三者并联则I1,I2=?
物理人气:524 ℃时间:2020-05-08 04:07:47
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与电阻成反比 3:2:1
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