30.圖(b)為圖(a)的諾頓等效電路,求其等效電流
與等效電阻
分別為何?
(A)
=−5A,
= 9Ω
(B)
= 5A,
= 11Ω
(C)
= 7A ,
= 9Ω
(D)
=−7A ,
= 11Ω
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統計: A(81), B(13), C(25), D(8), E(0) #2965336
統計: A(81), B(13), C(25), D(8), E(0) #2965336