ch27-p055 - 55. Let i1 be the current in R1 and R2, and...

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i 1 R 1 = i 2 R s . The second equation gives i 2 = i 1 R 1 / R s , which is substituted into the first equation to obtain () 2 1 12 1 1 1 . s xs x s R R R RR i RR i R R R += + = 55. Let i 1 be the current in R 1 and R 2 , and take it to be positive if it is toward point a in R 1 . Let i 2 be the current in
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