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R串>R2>R1>R.并 R并>R.串>R2>R1 R串>R.并>R1>R2 R串>R.并>R2>R1
R=R1+R2 R=R1+R2+R3 R=R1+R2+R3+R4 R=R1+R2+R3+R4+R5
R=R1+R2 R=R1×R2/(R1+R2) R=R1+R2/R1×R2
1/R=(1/R1)+(1/R2)+(1/R3) R=R1+R2+R3 R=1/(R1R2R3) R=R1=R2=R3
当R₁R₃=R₂R₄时,电桥平衡 当R₁R₃=R₂R₄时电桥不平衡 当R₁R₂=R₃R₄时,电桥平衡 当R₁R₂=R₃R₄时,电桥不平衡
R1-R2 R1+R2 (R1+R2)/R1×R2 R1×R2/(R1+R2)
1/R=1/R1+1/R2+1/R3 1/R=1/R1+R2+R3 R=R1+R2+R3 1/R=1/R1R2R3
R=R1+R2+R3 R=R1=R2=R3 1/R=1/R1+1/R2+1/R3 R+R1=R2+R3
R1+R2 R1·R2 R1·R2/R1+R2 R1+R2/R1·R2
R=R1=R2=R3 R=R1+R2+R3 1/R=1/R1+1/R2+1/R3 R=R1R2R3
R1+R2 R1·R2 R1·R2/(R1+R2) R1+R2/R1·R2 (R1+R2)/R1·R2
1/R=1/R1+1/R2+1/R3 1/R=1/R1+R2+R3 R=R1+R2+R3 R=R1R2R3
R=R1+R2+R3 R=R1=R2=R3 1/R=1/R1+1/R2+1/R3 R+R1=R2+R3
1/R=1/R1+1/R2+1/R3 1/R=1/R1+R2+R3 R=R1+R2+R3 1/R=1/R1R2R3
1/R=1/R1+1/R2+1/R3 1/R=1/R1+R2+R3 R=R1+R2+R3 R=R1R2R3