Re: 103 初等 基本電學 - 考試
By Elvira
at 2014-02-26T15:20
at 2014-02-26T15:20
Table of Contents
我解出來了:附上完整解法!
103初等考基本電學29題
想法:戴維寧+重疊
E1=12_0 分壓相減
Xc=1/wc=-j2 Xl=wl=j
Eth=-j6 Rth=3.5-j1.5
Io1=Eth/Rth=-j6/3.5-j1.5=6_-90/3.81_-23.2=1.57_-66.8=0.62-j1.44
I2=4_0 分流
Io2=4(1-j2/1-j2+2.5+j0.5)=1-j2/3.5-j1.5=2.24_-63.43/3.81_-23.2
=2.35_-40.23=1.79-j1.52
Io=Io1+Io2=0.62-j1.44+1.79-j1.52=2.41-j2.96=3.81_-50.85
答案c
謝謝之前高手的提示!
--
103初等考基本電學29題
想法:戴維寧+重疊
E1=12_0 分壓相減
Xc=1/wc=-j2 Xl=wl=j
Eth=-j6 Rth=3.5-j1.5
Io1=Eth/Rth=-j6/3.5-j1.5=6_-90/3.81_-23.2=1.57_-66.8=0.62-j1.44
I2=4_0 分流
Io2=4(1-j2/1-j2+2.5+j0.5)=1-j2/3.5-j1.5=2.24_-63.43/3.81_-23.2
=2.35_-40.23=1.79-j1.52
Io=Io1+Io2=0.62-j1.44+1.79-j1.52=2.41-j2.96=3.81_-50.85
答案c
謝謝之前高手的提示!
--
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