P28_059 - 59. (a) Since Rtank = 140 , i = 12 V/(10 + 140 )...

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59. (a) Since R tank = 140 Ω, i =12V / (10 Ω + 140 Ω) = 8 . 0 × 10 2 A. (b) Now, R tank = (140 Ω + 20 Ω) / 2=80Ω,so i =12V / (10Ω+80Ω)=0
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