21.如圖所示之電路,a、b 兩端的戴維寧等效電壓
及等效電阻
分別為何?
(A)
=16V ,
=19Ω
(B)
= 24V ,
= 4Ω
(C)
= 8V,
= 5Ω
(D)
=16V ,
= 5Ω
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統計: A(7), B(12), C(11), D(97), E(0) #2965327
統計: A(7), B(12), C(11), D(97), E(0) #2965327