基本電學一個觀念 - 考試

By Kyle
at 2015-08-04T11:07
at 2015-08-04T11:07
Table of Contents
http://imgur.com/iiAfJlh
這題答案是(A)
此題若直接不看ISC(因等同原電路電流源5A)直接觀察等效電阻 (3+3)//3=2
是否可行,還是只是剛好湊巧? 因改動電壓源的話答案就不是A,但是等效電路的電流源
應該也會變動(不等於5A)。所以遇到此類題目是否可以直接用"看"的?
--
這題答案是(A)
此題若直接不看ISC(因等同原電路電流源5A)直接觀察等效電阻 (3+3)//3=2
是否可行,還是只是剛好湊巧? 因改動電壓源的話答案就不是A,但是等效電路的電流源
應該也會變動(不等於5A)。所以遇到此類題目是否可以直接用"看"的?
--
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考試
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