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19. 通常定義 1 伏特,是指移動 1 庫侖電荷需做多少焦耳 J 的功? (A) 0.1J (B) 1J (C) 10J (D) 100J。
問題詳情
19. 通常定義 1 伏特,是指移動 1 庫侖電荷需做多少焦耳 J 的功?
(A) 0.1J
(B) 1J
(C) 10J
(D)
100J。
參考答案
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18. 一個由 50kΩ可變電阻器和 0.02μF 可變電容器串聯的交流 RC 電路,若想要使網路內電流 增加原來的 5 倍,但不改變電容器電壓,則所需調整的 R 和 C 之新值分別為? (A
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5.同平面平行力系中,求合力位置係利用何種原理 ? (A) 正弦定律 (B) 餘弦定律 (C) 虎克定律 (D) \u0004力矩原理
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20. 如圖所示,試求電路中的總電阻為何? (A) 0.5Ω (B) 1Ω (C) 2Ω (D) 5Ω。
6.有一同平面平行力系如【圖 6】所示,其等效合力之作用位置到 A 點距離為多少公尺(m) ? (A) 3.0 m (B) 3.5 m (C) 4.2 m (D) 7.0 m
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41 (A) In addition (B) In contrast (C) In conclusion (D) In conjunction
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43 (A) that (B) which (C) where (D) there
44 (A) ban (B) spin (C) curse (D) fund
45 (A) rescue (B) interfere (C) dismiss (D) provide
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21. 有一電容器接上 100V 的直流電壓後,儲存 1 焦耳的能量,求此電容器的電容值為多少? (A) 2m
22. 若複數 A = 4√ 2∠45° , B = 2 - j 2√ 3 ,則 A ÷ B = ? (A) 2 + j11 (B)√ 2∠105° (C) 6 √2∠ - 25°
23. 迴路電流分析法,其應用到那些電路理論? (A)克希荷夫電流定律、歐姆定律 (B)克希荷夫 電壓定律、歐姆定律 (C)克希荷夫電壓定律、克希荷夫電流定律 (D)克希荷夫電壓定律、焦耳定