基本電學 - 考試
By Vanessa
at 2017-05-12T00:10
at 2017-05-12T00:10
Table of Contents
http://imgur.com/a/EtApF
黑線以下為計算過程
此為假設電流方向為 I3 = I1+I2
算出答案為 0.4221 cos(2t+13.09')
但正確答案卻是 0.1947 cos(2t+35.72')
而試著以 I1= I2+I3 方式來計算可得出此答案...
為何 要以 I1=I2+I3來算 ,小弟假設此方式有誤嗎?
假設方向不是僅正負號差異,還是計算錯誤 = =
筆跡瞭草請見諒
--
黑線以下為計算過程
此為假設電流方向為 I3 = I1+I2
算出答案為 0.4221 cos(2t+13.09')
但正確答案卻是 0.1947 cos(2t+35.72')
而試著以 I1= I2+I3 方式來計算可得出此答案...
為何 要以 I1=I2+I3來算 ,小弟假設此方式有誤嗎?
假設方向不是僅正負號差異,還是計算錯誤 = =
筆跡瞭草請見諒
--
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考試
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