28 有三個電阻器，電阻值分別為R1Ω、R2Ω、R3Ω，且R1＞R2＞R3，今將此三個電阻器並聯後，總電阻值為RTΩ，則下列何者正確？ (A)R1＞RT＞R2 (B)R2＞RT＞R3 (C)R3＞RT

問題詳情

28 有三個電阻器，電阻值分別為R1Ω、R2Ω、R3Ω，且R1＞R2＞R3，今將此三個電阻器並聯後，總電阻值為RTΩ，則下列何者正確？
(A)R1＞RT＞R2
(B)R2＞RT＞R3
(C)R3＞RT
(D)RT＞R1

答案：C
難度：簡單0.879032
統計：A(1),B(9),C(109),D(2),E(0)