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批踢踢實業坊 Examination 板
Re: [考題] 102鐵特員級+97普考 基本電學
Jul 2nd 2013, 15:20, by linml0125

作者linml0125 (拈花惹草的男子)

看板Examination

標題Re: [考題] 102鐵特員級+97普考 基本電學

時間Tue Jul 2 15:20:19 2013

※ 引述《TFNF (帕妮飯)》之銘言： : 1. 題目來源: 102鐵特員級第四題 : http://ppt.cc/CEq6 : 第一步先求戴維寧等效電阻,我算過好幾遍都是 19/11 歐姆 : 為何公職王提供的答案中 等效電阻為 29/17 歐姆?? : 算法如下:http://ppt.cc/15AG 再算一次,Rth=29/17歐姆無誤 先將電壓源短路,右邊1歐姆拿掉,並接上Vt的測試電壓源,會流出It http://ppt.cc/JMUd Rth`=12/17,加上拿掉的1歐姆,就等於29/17歐姆 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 180.218.87.98

→ linml0125:Vx=-V1 07/02 15:21

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