基本電學 問題 - 考試

By Catherine
at 2013-03-14T00:45
at 2013-03-14T00:45
Table of Contents
今天剛好算到交流電源這章節,碰到兩題不太懂,麻煩版友幫我解答!
第一題:http://ppt.cc/_VHd
圖:http://ppt.cc/BleM
這一題答案是(D),我卡在最大功率都求不到125W這數值!
我用Pmax=Eth^2/4Rth這公式求不出來!
我想知道,Eth跟Rth分別是多少?
第二題:http://ppt.cc/BhPB
這題答案是(A),為什麼答案不是(C)呢?不是電阻相同,才有最大功率嗎?
麻煩各位請為小弟解惑,謝謝!
--
第一題:http://ppt.cc/_VHd
圖:http://ppt.cc/BleM
這一題答案是(D),我卡在最大功率都求不到125W這數值!
我用Pmax=Eth^2/4Rth這公式求不出來!
我想知道,Eth跟Rth分別是多少?
第二題:http://ppt.cc/BhPB
這題答案是(A),為什麼答案不是(C)呢?不是電阻相同,才有最大功率嗎?
麻煩各位請為小弟解惑,謝謝!
--
Tags:
考試
All Comments

By Tristan Cohan
at 2013-03-18T07:36
at 2013-03-18T07:36

By Jacob
at 2013-03-22T10:18
at 2013-03-22T10:18

By Eartha
at 2013-03-25T03:21
at 2013-03-25T03:21

By Carolina Franco
at 2013-03-25T18:17
at 2013-03-25T18:17

By Todd Johnson
at 2013-03-30T15:21
at 2013-03-30T15:21

By Quanna
at 2013-03-31T02:30
at 2013-03-31T02:30

By Lauren
at 2013-03-31T07:12
at 2013-03-31T07:12

By Una
at 2013-04-02T19:07
at 2013-04-02T19:07

By Wallis
at 2013-04-05T03:52
at 2013-04-05T03:52

By Freda
at 2013-04-06T07:45
at 2013-04-06T07:45

By Barb Cronin
at 2013-04-06T21:16
at 2013-04-06T21:16

By Lauren
at 2013-04-07T01:50
at 2013-04-07T01:50

By Damian
at 2013-04-08T03:22
at 2013-04-08T03:22

By Aaliyah
at 2013-04-09T04:16
at 2013-04-09T04:16

By Yedda
at 2013-04-10T13:21
at 2013-04-10T13:21

By Ivy
at 2013-04-14T13:50
at 2013-04-14T13:50

By Yedda
at 2013-04-15T07:33
at 2013-04-15T07:33

By Victoria
at 2013-04-20T06:05
at 2013-04-20T06:05

By Tom
at 2013-04-21T17:49
at 2013-04-21T17:49

By Carolina Franco
at 2013-04-23T20:28
at 2013-04-23T20:28
Related Posts
關務英文_99

By Megan
at 2013-03-14T00:39
at 2013-03-14T00:39
關務英文_99

By Erin
at 2013-03-14T00:10
at 2013-03-14T00:10
初考填志願

By Hedda
at 2013-03-14T00:01
at 2013-03-14T00:01
心理學和公共政策用書推薦(警特三等)?

By Carolina Franco
at 2013-03-13T23:51
at 2013-03-13T23:51
至LifeNewboard投票選版主!!

By Ula
at 2013-03-13T23:50
at 2013-03-13T23:50