36.某生做RC充放電實驗電路如圖(二)，並輸入正電源對C充滿電， 下列何者使電容器放電時間最快？

(A)R=5kΩ、C=5μF
(B)R=5kΩ、C=10μF
(C)R=10kΩ、C=10μF
(D)R=1kΩ、C=5μF

37.有關日光燈的敘述，下列何者正確？ (A)LED日光燈管因為省電，安裝時沒有觸電的危險 (B)日光燈管分T5或T8的區別是長度不同 (C)LED日光燈管的優點包括其製作材料未使用水銀 (D)傳統日光燈管的啟動器，規格是1P的適用30W以上或是220V 交流供電的燈管

38.有關電力系統的敘述，下列何者錯誤？ (A)交流電無電壓極性 (B)交流電除正弦波外，還有方波等等 (C)直流電無集膚效應，電流可均勻分布在導體截面 (D)高電壓輸電可減少電能在線路上的損失

39.有關交流電功率的敘述，下列何者錯誤？ (A)無實際消耗能量之功率稱為視在功率 (B)平均功率又稱實功率 (C)功率因數為交流電路中平均功率與視在功率的比值 (D)平均功率為瞬間功率在一個週期內的平均值

40.有關交流電源的敘述，下列何者錯誤？ (A)單相二線式與單相三線式電源差別在於其傳輸線數目不同 (B)三相電源可提供三組正弦波電源 (C)交流電功率的量測可使用瓦特計 (D)單相三線式電源提供三組相差120°的電源

1. In Figure 1, the observer at O views two closely spaced lines through an angled piece of plastic. How do the lines appear to the observer? (A) shifted to the right. (B) shifted to the left. (C) spaced farther apart. (D) spaced closer together. (E) exactly as they do without the piece of plastic.

2. In Figure 2, monochromatic light with a wavelength in air of λ= λ0 = 500 nm shines normally on a pair of identical glass microscopic slides (I= 10.0 cm in length) that form a very narrow wedge (with thickness h = 0.0200 mm). The top surface of the upper slide and the botton surface of the lower slide have special coatings on them so that they reflect no light. In the following, which position corresponds to a dark fringe? (A) x = 1.75 mm, (B) x = 1.00 mm, (C) x = 1.25 mm, (D) x = 2.20 mm, (E) x = 2.15 mm. A periodic transverse wave travels along an x-axis. Figure 3(a) gives the displacements of elements as a function of x at time t = 0. Figure 3(b) gives the displacements of elements at x = 0 as a function of time t.

3. What is the wave velocity of the traveling wave? (A) -3 cm/s, (B) +3 cm/s, (C) -5 cmn/s, (D) +5 cn/s, (E) 0 cm/s.

4. At t = 0, what is the transverse velocity of the element at x = 9 cm?(A) +2 cm/s, (B) -2 cm/s, (C) +10 cm/s,(D)-10 cm/s, (E) 0 cm/s.

5. Consider a heat engine operating in a closed cycle, as illustrated in Figure 4. The cycle begins at initial state i and involves a irreversible process leading to final state f, followed by an reversible process returning the system from state f back to i Choose the correct description from the following options, based on this cycle that commences from state i:(A) (B) (C) In the entire cycle i →  f →i  the cyclic integral (D) the integral(E) In the process from i to f, the system releases heat.

6. deal Carnot engine cycle, 1500 J of heat is absorbed from a high-temperature heat source. If the efficienc the heat Q released to the low-temperature heat sink during this cycle is to be determined, what (A) 1000 J, (B) 1050 J, (C) 1100 J, (D) 1150 J,(E) 1200 J.

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