課程內容提問單
Quiz by 賴世章
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5 questions
Show answers
- Q1
1. v(t)為正弦電壓，C為理想電容，則純電容電路，電容器兩端之電壓與電流之相位關係為何？(A)電壓超前電流45° (B)電壓超前電流90° (C)電壓與電流同相 (D)電壓滯後電流90°。
D
300s - Q2
若跨於某電路元件上之電壓為v(t)= 800 sin (628t + 30°) V，流過此元件之電流為i(t)= 5 sin (628t + 30°) A，則此元件性質應屬 (A)電阻性 (B)電感性 (C)電容性 (D)無法確定。
A
120s - Q3
計算
C
300s - Q4
RLC串聯電路，若R = 6Ω，XL = 16Ω，XC = 8Ω，線路電流I = 10A，則電源電壓為多少？ (A) 80V (B) 100V (C) 120V (D) 240V。
B
120s - Q5
設VC(t) = 60 cos (100t – 30°) V，則I(t)為何？(A) 0.6 cos (100t + 30°) A (B) 0.6 sin (100t + 60°) A (C) 0.6 sin (100t + 150°) A (D) 0.6 cos (100t + 150°) A。
C
30s
