2023年香港AP考试报名时间正式开始！
2023年的AP考试，大陆考试报名已经于9月19日开始，中国香港考评局更新了2023年的AP考试报名时间信息。2023年香港AP报名将于本周四10月13日北京时间上午9:00正式开始！ 美国大学理事会在2020年暂停了与教育部的合...
美国Top 10大学专业排名发布，附对应AP科目和院校推荐
在大学里，同学们可以根据自己的兴趣找到一个符合自己理想职业道路的专业。哪些大学专业更受欢迎？毕业后更有前途？都是大家非常关注的问题。 普林斯顿评论根据对就业前景、校友薪水和受欢迎程度的调查，编撰了这...
Edexcel A Level Physics:复习笔记7.19 Lenz's Law
Lenz's Law Lenz’s Law is used to predict the direction of an induced e.m.f in a coil or wire Lenz's Law is summarised below: The induced e.m.f is set up in a direction to produce effects that oppos...
Edexcel A Level Physics:复习笔记7.18 Induced E.M.F between Linked Coils
Induced E.M.F between Linked Coils An e.m.f can be induced in a coil when there is a change of current in another coil linked with this coil This is what happens in a transformer Transformers A tra...
Edexcel A Level Physics:复习笔记7.17 Induced E.M.F in a Moving Coil
Induced E.M.F in a Moving Coil Electromagnetic induction is a phenomenon which occurs when an e.m.f is induced when a conductor moves through a magnetic field If there is a change in magnetic flux ...
Edexcel A Level Physics:复习笔记7.16 Magnetic Force on a Current-Carrying Conductor
Magnetic Force on a Current-Carrying Conductor A current-carrying conductor produces its own magnetic field An external magnetic field will therefore exert a magnetic force on it A current-c...
Edexcel A Level Physics:复习笔记7.15 Magnetic Force on a Charged Particle
Magnetic Force on a Charged Particle The magnetic force on an isolated moving charged particle, such as a proton, is given by the equation: F = BQv Where: F = magnetic force on the particle (N) B =...
Edexcel A Level Physics:复习笔记7.14 Magnetic Flux Density, Flux & Flux Linkage
Magnetic Flux, Flux Density & Flux Linkage Magnetic Flux Density The strength of a magnetic field is defined by the density of the magnetic field lines, or magnetic flux density, at that point ...
AP计算机科学A学习什么内容？附CB官方推荐学习网站
大学打算学习计算机，AI人工智能等方向专业的同学在AP课程阶段肯定少不了会选择计算机科学这一科；本期我们就来给各位同学讲讲这门奇妙的课程！ AP计算机科学课程系列包括两门课程，学生可以选择以任意顺序修读或...
