問題詳情
10 圖中整流電路，假設輸入電壓的變化為 VPS = 20V～24V，阻抗的變化為 RL = 100Ω～500Ω，則欲得到穩定的輸出電壓 VL = 10V，合理的 Ri應為
(A)87.5Ω
(B)175Ω
(C)350Ω
(D)700Ω
(A)87.5Ω
(B)175Ω
(C)350Ω
(D)700Ω
參考答案
答案：A
難度：適中0.533333
統計：A(24),B(5),C(7),D(5),E(0)
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