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考试时间三小时,共回答六题,但每部分不能超过三题,每部分的答案必须分别给出。方括号中给出每道题中不同部分所占的相对分数。 [重力加速度g=9.8米/秒~2;真空中光速为3×10~8米/秒;真空中的介电常数和磁导率分别为ε_0=8.85×10~(-12)法/米和μ_0=4π×10~(-7)亨/米]
The examination time is three hours and a total of six questions are answered. However, each part cannot exceed three questions. The answer for each part must be given separately. The relative scores of different parts of each question are given in square brackets. [Gravitational acceleration g = 9.8 m/sec ~ 2; the speed of light in vacuum is 3 × 10 ~ 8 m/s; dielectric constant and permeability in vacuum are ε_0 = 8.85 × 10 ~ (-12) / m And μ_0=4π×10~(-7) hen/m]