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• 3. (1) 某 10kVA 之單相變壓器，其鐵損為 250W，滿載銅損為 400W，該變壓器在功率因數為 0.8 時，一日之運轉供電情況為：滿載 12 小時，半載 6 小時，無載 6 小時，試求全日
• (2)某直流電機在 500 rpm 時之鐵損為 150 W，而在 1000 rpm 時之鐵損為400W 磁通密度保持不變），則在 500 rpm 時之渦流損為？(5 分)
• 4. (1)有一部三相、6 極、60Hz、感應電動機，若其滿載轉速為 1116rpm，試求此電動機的轉子頻率為多少？(5 分)
• 2. (10pt) The voltage across a load and the current through it are given by v(t)=10+30cos(100t) V an
• 3. (10pt) A three-phase transmission line has an impedance of 4+2jΩ per phase. It supplies a load of
• 4. (10pt) Determine average dc output voltage of a single-phase full-wave rectifier applied by 1 10V
• 5. (10pt)A buck converter is operated with the following parameters: Vg=20V, Vo=10V, L=50uH,switchin
• 【題組】(2) Draw the waveform of diode voltage. (5pt)
• 6. (10pt)A four-pole, 60Hz induction motor supplies 15kW to a load at 5% slip. Determine :【題組】(1) Ro
• 【題組】(2) Rotor frequency.(5pt)
• 9. A company’s output is given by the Cobb-Douglas production function , where L and Kare the number
• 2.試以四對一多工器完成Y=之電路。
• 【題組】(b) 如果從該公司隨機抽取 40 個員工，試計算此 40 個員工平均的加班時數小於 8小時的機率為何？
• 7. (20pt) Determine the center frequency and bandwidth of the bandpass filter in the figure 1.
• (2)有一部三相、4 極、60HZ、定子採 Y 接的同步發電機，若每極最大磁通量為 0.01 韋伯，總電樞繞組匝數為 300 匝，若電樞繞組節距因數=0.8、分佈因數=0.9，試求感應的線電壓約為多少
• 2. (12%)某一個研究調查女性軍人是否應該參與實際戰鬥，隨機抽取 100 人得到如下的結果：  請計算下述的機率【題組】(a) 如果被調查者為女性，他同意的機率。
• 10. A clothing designer’s sales S depends on x, the amount spent on TV advertising, and y, the amoun
• 5. The -field of a uniform plane wave propagating in a dielectric medium isgiven by.【題組】(a) Determin
• 【題組】2). At the .01 significance level, is there a difference in the mean number of times men and wom
• 【題組】3). At the .01 significance level, is there a difference in the mean number of times men and wom
• 8. An economist is interested to see how consumption for an economy (in $ billions) is influenced by
• 3.請用 D 型正反器設計一組 2 位元上／下計數器，其中當時電路為上數，且上數到 11 時 (終端計數)輸出 1，否則輸出 0；當時電路為下數，且下數到 00 時 輸出 1，否則輸出 0。
• 8.(20pt) For the s-domain circuit in figure 2, determine the transfer function and vo (t) if vs (t)=
• (Problem 2] (20%) Suppose we are considering a change to an instruction set. The base machine is a l
• 2. 如圖(六)所示，開關 S 在閉合很久之後打開，請問打開瞬間電流I 之值為 _______A (5%)