26. 求圖(十九)電路 ab 兩端之戴維寧等效電壓 VTH及戴維寧等效電阻 RTH為何值? 
(A) VTH = 5 V、RTH = 10 Ω
(B) VTH = 5 V、RTH = 20 Ω
(C) VTH = 10 V、RTH = 10 Ω
(D) VTH = 10 V、RTH = 20 Ω 

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統計: A(4), B(1), C(3), D(21), E(0) #716685

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