16．下圖之展開圖為
(A)
(B)
(C)
(D)

答案：登入後查看
統計： 尚無統計資料

相關試題

17．左圖ab線段穿越哪幾個象限 (A)I、II、III (B)II、I、IV (C)I、IV、III (D)II、III、IV

18．左圖彈簧自由長度Lo為 (A)160 mm (B)170 mm (C)180 mm (D)190 mm

19．下圖的表面織構符號 (A)波狀參數最大輪廓線高度為3μm，評估長度為25mm (B)波狀參數最大輪廓線高度為3μm，評估長度為10mm (C)波狀參數最大輪廓線高度為10μm，評估長度為75mm (D)波狀參數最大輪廓線高度為10μm，評估長度為25mm

20．表面織構符號在文字中為NMR 0.008-0.8/Ra 3.2時，在圖面上之標註符號為? (A) (B) (C) (D)

1. In free space, there are two point charges of Q1= 2q and Q2 = 6q located at (0, 2r, r) and (r, 0, 3r) in rectangular (Cartesian) coordinate system. What is the magnitude of the force experienced by Q2?(A)(B)(C)(D)(E)None of the above

2. A sphere with radius a contains a uniform volume charge density ofρvin the region: 0 ＜ r ＜ a. If the sphere is isolated by a conducting spherical shell with inner radius b and outer radius c placed concentrically, as shown in figure. What is the electric field intensity in the region b ＜ r ＜ c?(A)(B)(C)(D)(E)None of the above

3. A straight wire carrying a current I in the z direction is located along the z axis in free space. If the wire is infinitely long and infinitely thin, what is the magnetic field intensity at the point (0, L, 0) in rectangular coordinate system?(A)(B)(C)(D)(E)None of the above

4. In a perfect dielectric medium with the permeability of \(\mu\), there exists an electric field given as \(\mathbf{E} = E0cos(ωt - kz)ax, where E0 is the peak value, \(\omega\) is the frequency, k is a constant, and \(\hat{a}_x\) is the unit vector in x direction. What is the magnetic field (H) in the region?(A)(B)0(C)(D)(E)None of the above

5. A uniform electromagnetic plane wave is traveling in free space and its electric field is given by E = 5cos(ωt-2z)ax V/m, what is the angular frequency, ω in (rad/s), of the plane wave?(A)3✖108(B)6✖108(C)6✖109(D)6.28✖108(E)None of the above

6. A long core-shell structure is made to transmit an optical wave through total internal reflection within the core region. If the refractive indices for the core and the shell are respectively n1 = 1.5 and n2 = 3.0, as depicted in the figure. What is the minimum value of the angle \(\theta\) for a successful transmission?(A)30°(B)45°(C)60°(D)90°(E)None of the above

相關試卷

114年 - 114 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#137974

2025 年 · #137974

113年 - 113 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#138095

2024 年 · #138095

112年 - 112 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#138264

2023 年 · #138264

111年 - 111 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#138290

2022 年 · #138290

110年 - 110 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#139155

2021 年 · #139155

109年 - [無官方正解]109 全國高級中等學校學生技藝競賽考試_工業類:電腦補助機械製圖#139141

2020 年 · #139141

107年 - 107 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#139395

2018 年 · #139395

107年 - 107 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#139300

2018 年 · #139300

105年 - 105 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#139386

2016 年 · #139386

104年 - [無官方正解]104 全國高級中等學校學生技藝競賽考試_工業類:電腦輔助機械製圖#139701

2015 年 · #139701