98國安 基本電學 - 考試
By Ina
at 2014-12-09T11:51
at 2014-12-09T11:51
Table of Contents
考題
http://wwwc.moex.gov.tw/ExamQuesFiles/Question/098/030804300.pdf
17 交流電壓 V(t)=100 sin 377 t 伏特,其正半波之電壓平均值為多少伏特?
我覺得應該是100*0.636阿~ 可是選項沒這個答案
有去查過 這種題目問正半週就是Vm*0.636
不知道是哪邊出問題 還是說...問正半波就不一樣了= =
謝謝
--
http://wwwc.moex.gov.tw/ExamQuesFiles/Question/098/030804300.pdf
17 交流電壓 V(t)=100 sin 377 t 伏特,其正半波之電壓平均值為多少伏特?
我覺得應該是100*0.636阿~ 可是選項沒這個答案
有去查過 這種題目問正半週就是Vm*0.636
不知道是哪邊出問題 還是說...問正半波就不一樣了= =
謝謝
--
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