Edexcel IGCSE Physics: Double Science 复习笔记： 2.3.4 Electricity & Heat
Edexcel IGCSE Physics: Double Science 复习笔记： 2.3.4 Electricity & Heat Electricity & Heat When electricity passes through a component, such as a resistor, some of the electrical e...
Edexcel IGCSE Physics: Double Science 复习笔记： 2.3.3 Electrical Safety
Edexcel IGCSE Physics: Double Science 复习笔记： 2.3.3 Electrical Safety Electrical Safety Mains electricity is potentially lethal Potential differences as small as 50 V can pose a serious h...
Edexcel IGCSE Physics: Double Science 复习笔记： 2.3.2 Calculating Energy Transfers
Edexcel IGCSE Physics: Double Science 复习笔记： 2.3.2 Calculating Energy Transfers Calculating Energy Transfers Work is done when charge flows through a circuit Work done is equal to the en...
Edexcel IGCSE Physics: Double Science 复习笔记： 2.3.1 Electrical Power & Fuses
Edexcel IGCSE Physics: Double Science 复习笔记： 2.3.1 Electrical Power & Fuses Electrical Power Power is defined as The rate of energy transfer or the amount of energy transferre...
Edexcel IGCSE Physics: Double Science 复习笔记：2.2.5 Electrical Components
Edexcel IGCSE Physics: Double Science 复习笔记：2.2.5 Electrical Components Thermistors & LDRs Thermistors A thermistor is a temperature-dependent resistor It is represented by the follo...
Edexcel IGCSE Physics: Double Science 复习笔记：2.2.4 IV Graphs
Edexcel IGCSE Physics: Double Science 复习笔记：2.2.4 IV Graphs IV Graphs As the potential difference across a component is increased, the current also increases This is because potential di...
Edexcel IGCSE Physics: Double Science 复习笔记：2.2.3 Resistors in Series
Edexcel IGCSE Physics: Double Science 复习笔记：2.2.3 Resistors in Series Resistors in Series When two or more resistors are connected in series, the total (or combined) resistance is equal ...
Edexcel IGCSE Physics: Double Science 复习笔记： 2.2.2 Voltage in Series & Parallel
Edexcel IGCSE Physics: Double Science 复习笔记： 2.2.2 Voltage in Series & Parallel Voltage in Series & Parallel In a series circuit: The current is the same at all points ie. throug...
Edexcel IGCSE Physics: Double Science 复习笔记：2.2.1 Current in Series & Parallel
Edexcel IGCSE Physics: Double Science 复习笔记：2.2.1 Current in Series & Parallel Current in Series Circuits In a circuit that is a closed-loop, such as a series circuit, the current is...
Edexcel IGCSE Physics: Double Science 复习笔记：2.1.3 Resistance
Edexcel IGCSE Physics: Double Science 复习笔记：2.1.3 Resistance Calculating Current, Resistance & Potential Difference Resistance is defined as the opposition to current: The higher the...
Edexcel IGCSE Physics: Double Science 复习笔记：2.1.2 Voltage & Energy
Edexcel IGCSE Physics: Double Science 复习笔记：2.1.2 Voltage & Energy Voltage The terminals of a cell make one end of the circuit positive and the other negative This sets up a potentia...
Edexcel IGCSE Physics: Double Science 复习笔记：2.1.1 Charge & Current
Edexcel IGCSE Physics: Double Science 复习笔记：2.1.1 Charge & Current Current Electric current is defined as the rate of flow charge In other words, the size of an electric current is t...
