Edexcel A Level Physics:復習筆記3.13 Potential Dividers
Potential Dividers The electrical voltages rule is defined as: The sum of the e.m.f.s in a closed circuit loop is equal to the sum of the potential differences around that loop Therefore, wh...
Edexcel A Level Physics:復習筆記3.12 Potential Difference & Conductor Length
Potential Difference & Conductor Length Potential Difference A cell makes one end of the circuit positive and the other negative. This sets up a?potential difference?across the circuit The pote...
A-Level經濟和商務有何不同，應該如何選？
A-Level 商務（Business Management）和A-Level 經濟（Economy）都是商科方向的課程。于是有很多學生會在選課階段對著兩門課程糾結不已，不知道究竟該選擇哪門課程。事實上，雖然A-Level 商務（Business Manageme...
2023年大陸AP考試報名即將截止，為什么要參加AP考試？
9月19日，美國大學理事會College Board?宣布大陸2023年AP考試報名正式開啟。在2022-23學年，大學理事會繼續與Prometric合作管理國內的AP考試報名和考務工作。 美國大學先修課程(Advanced Placement)，簡稱AP課程...
Edexcel A Level Physics:復習筆記3.11 Current & Drift Velocity
Calculating Current & Drift Velocity Drift Velocity In a conductor, the current is due to the movement of charge carriers The charge carriers can be negative or positive However current ...
Edexcel A Level Physics:復習筆記3.10 Core Practical 2: Investigating Resistivity
Core Practical 2: Investigating Resistivity Aims of the Experiment The aim of the experiment is to determine the resistivity of a length of wire Variables Independent variable?= Length,?L,?of the w...
2022年NEC全美經濟學挑戰賽報名已開啟，哪些學生適合參加NEC？
NEC全美經濟挑戰賽火熱報名中，作為為數不多的經濟商科方向可選高中國際學術活動，NEC是千萬不能錯過的高價值學術活動！ NEC全美經濟挑戰賽介紹 全美經濟學挑戰賽?(National Economics Challenge) 是美國最具影響...
光華劍橋2022春招考試即日起可預報名！
十月，是招生的黃金季，相信在接下來的一兩個月內，2023擇校大戲將進入高潮期，提前了解考試流程及內容，才能更加從容地面對春招大戰。 而最新消息顯示，光華劍橋2023年春季班招生考試將于2022年10月30日周日上午...
Edexcel A Level Physics:復習筆記3.9 Electrical Resistivity
Electrical Resistivity All materials have some?resistance?to the flow of charge As?free?electrons?move?through a metal wire, they collide with ions which get in their way As a result, they?t...
Edexcel A Level Physics:復習筆記3.8 Current-Potential Difference Graphs
Current-Potential Difference Graphs As the potential difference (voltage) across a component is increased, the current also increases (by?Ohm’s law) The precise relationship between voltage ...
Edexcel A Level Physics:復習筆記3.7 Electrical Power
Electrical Power Work is also defined as a transfer of energy When components transfer electrical energy to other stores, work must be done because energy is transferred Therefore,?potential differ...
Edexcel A Level Physics:復習筆記3.6 Resistance in Series & Parallel
Deriving Equations for Resistance in Series & Parallel Resistors In Series When two or more components are connected in series: The combined resistance of the components is equal to the sum of ...
