Re: [問題] 基本電學:Realtime @ 2016徵求年菜推薦網路訂購最紅的商家.年菜訂購?台北年菜外送餐廳推薦(年菜)?年菜.今年不想做年菜推薦,網路宅配哪一家好?

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批踢踢實業坊 Examination 板

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Re: [問題] 基本電學

Aug 30th 2014, 19:58, by jht

作者jht (TRA Train Driver)

看板Examination

標題Re: [問題] 基本電學

時間Sat Aug 30 19:58:46 2014

※ 引述《r833123 (登大人)》之銘言： : http://ppt.cc/Vmkn : 答案是2.5A : 我算出來是2A : 請問我哪裡算錯您的 I2 算錯沒有算到最左邊的2歐姆 3歐姆被短路無視沒錯但是 2歐姆並沒有喔所以電流分配 2歐姆 4A ; 4歐姆 2A I2=2A =>I1+I2+I3=2+2-1.5=2.5A : 還是第四張圖的電流路徑有誤 : 謝謝用克希荷夫電流定律就可以解假設最上面電壓 V V-12 V-9 ____ - 6 + ___ = 0 2 4 V=19 I=(19-9)/4 I=2.5A -- 乘務員守則: 乘誤員手則: 一.絕對遵守號誌一.絕不遵守號誌二.絕不超速行車二.絕對超速行車三.勵行呼喚應答三.根絕呼喚應答四.根絕責任事故四.推卸責任事故 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 118.171.66.246 ※ 文章網址: http://www.ptt.cc/bbs/Examination/M.1409399929.A.B5D.html ※ 編輯: jht (118.171.66.246), 08/30/2014 19:59:42 ※ 編輯: jht (118.171.66.246), 08/30/2014 20:00:21 ※ 編輯: jht (118.171.66.246), 08/30/2014 20:17:40

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