5 設四個阻抗值都為 R 之電阻器採並聯連結,則其等效之阻抗值 RT為多少?
(A)RT = R/4
(B)RT = R/2
(C)RT = 2R
(D)RT = 4R
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統計: A(967), B(37), C(13), D(40), E(0) #649125
統計: A(967), B(37), C(13), D(40), E(0) #649125