IB DP Physics: SL复习笔记5.4.1 Magnetic Fields
Magnetic Fields Magnetic Field Definition A magnetic field is a field of force that is created either by: Moving electric charge Permanent magnets Permanent magnets are materials that produce a mag...
IB DP Physics: SL复习笔记5.3.4 Electromotive Force & Internal Resistance
Electromotive Force When charge passes through a power supply such as a battery, it gains electrical energy The electromotive force (e.m.f) is the amount of chemical energy converted to electrical ...
IB DP Physics: SL复习笔记5.3.3 Terminal Potential Difference
Terminal Potential Difference Defining Potential Difference A cell makes one end of the circuit positive and the other negative. This sets up a potential difference V across the circuit The potenti...
IB DP Physics: SL复习笔记5.3.2 Investigating Electric Cells
Investigating Electric Cells Zinc-carbon cells Zinc-carbon cells are the most common type of primary cells, consisting of a zinc casing which acts as the negative electrode a paste of ammonium chlo...
IB DP Physics: SL复习笔记5.3.1 Primary & Secondary Cells
Primary & Secondary Cells Simple Cells A simple cell is a source of electrical energy The simplest design consists of two electrodes made from metals of different reactivity immersed in an elec...
IB DP Physics: SL复习笔记5.2.9 Potential Divider Circuits
Potential Divider Circuits When two resistors are connected in series, through Kirchhoff’s Second Law, the potential difference across the power source is divided between them Potential dividers ar...
IB DP Physics: SL复习笔记5.2.8 Heating Effect of Current
Heating Effect of Current When electricity passes through a component, such as a resistor, some of the electrical energy is turned into heat, therefore, increasing its temperature The heat that is ...
2022年夏季A-Level考试成绩即将放榜！出分后应该做什么？
时间已进入8月，各大考试局将会纷纷公布2022年夏季A-Level考试成绩。 面对不同的A-Level考试成绩，接下来又有哪些选择呢？ 三大考试局夏季大考放榜时间 爱德思考试局 A-Level：2022年8月17日下发给考试中心，8月1...
IB DP Physics: SL复习笔记5.2.7 Series & Parallel Circuits
Series & Parallel Circuits The following statements for series and parallel circuits are a consequence of Kirchhoff's first and second law In a series circuit: The current is the same at any po...
