What is the equivalent resistance of each group of resistors shown
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What is the equivalent resistance of each group of resistors shown

[From: ] [author: ] [Date: 12-04-10] [Hit: ]
R2 = 5.0 Ω, R3 = 7.0 Ω, R4 = 6.5 Ω,......
In the figure, R1 = 2.5 Ω, R2 = 5.0 Ω, R3 = 7.0 Ω, R4 = 6.5 Ω, and R5 = 2.0 Ω.

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in parallel, you have to add the inverses and then invert the answer
1/2.5 + 1/5 + 1/7 = 1/R
14 + 7 + 5 = 35/R
26 = 35/R
R = 35/26 Ω

1/6.5 + 1/6.5 + 1/6.5 = 1/R
1 + 1 + 1 = 6.5/R
R = (6.5/3) Ω

1/2 + 1/2.5 + 1/2 = 1/R
5 + 4 + 5 = 10/R
R = 10/14 Ω
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