14_Chapter 18 HomeworkCH18 Direct-Current Circuits

14_Chapter 18 HomeworkCH18 Direct-Current Circuits - 112...

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112 CHAPTER 18 18.15 (a) Connect two 5 to get 0- resistors in parallel 25 . Then connect that parallel combination in series with a 20- resistor for a total resistance of . 45 (b) Connect two 5 to get 25 0- resistors in parallel . Also, connect two 20- resistors in parallel to get 10 . Then, connect these two parallel combinations in series to obtain . 35 18.16 Going counterclockwise around the upper loop, applying Kirchhoff’s loop rule, gives
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