2. 如圖13試求V_bc 。

(A)V_bc =0V
(B)V_bc =4V
(C)V_bc =-4V
(D)V_bc =10V

198.What skills does Helen Sullivan highlight in her email? (A) Proficiency in administrative tasks. (B) Exceptional attention to detail and customer service. (C) Knowledge of the latest trends in the fashion industry. (D) Experience working with salon equipment maintenance.

199.What can be inferred about Freshly Salon's attitude towards hiring based on the email from the HR Manager? (A) Freshly Salon prefers candidates with extensive administrative experience. (B) Freshly Salon prioritizes qualifications and certifications over practical demonstrations. (C) Freshly Salon values practical assessments to evaluate candidates' skills. (D) Freshly Salon conducts interviews without considering the suitability of the candidate.

200.Which of the following statements is NOT true regarding the interview mentioned in the email from the HR Manager? (A) The interview will be conducted by the Chief Hairstylist, Tina. (B) The practical assessment will evaluate the candidate's hairstyling abilities. (C) The interview will take place on September 5 at 3:00 PM. (D) The applicant is required to bring copies of their resume and any relevant certifications

1. 描述電動機轉速n與電樞電流Ia的關係的曲線稱？ (A)無載特性曲線 (B)轉矩特性曲線 (C)轉速特性曲線 (D)電樞特性曲線

3. 有一1HP直流電動機，效率η=80% ，求其損失功率? (A)932.5W (B)746W (C)186.5W (D)150W

4. 如圖41，求電壓源的功率。 (A)60W (B)70W (C)80W (D)90W

5. 在控制系統的分類中,目標值輸入訊號一直保持不變稱之為: (A)定值控制 (B)追值控制 (C)位置控制 (D)最佳控制

6. 下列關於RLC串聯的敘述何者正確？ (A)電阻串聯阻值變小 (B)電容串聯電容抗阻值變 小 (C)電感串聯電感抗阻值變小 (D)電容與電壓串聯必定為電容性電路

7. 在直流電路中如果遇到電感元件應將電感視為： (A)假設為短路 (B)假設為斷路 (C)先 假設為短路再假設為斷路 (D)先假設為斷路再假設為短路

8. 圖7為一並聯電路，試求總電阻。(A)RT=2Ω (B)RT=22Ω (C)RT=1Ω(D)RT=3Ω