Energy Stored by a Capacitor When charging a capacitor, the power supply pushes electrons from the positive to the negative plate It therefore does work on the electrons and electrical energ...
The scalar product is one method of multiplying vectors which results in a scalar and has uses when working with vectors and lines. The vector product is a different method, which results in a vect...
Coincident, Parallel, Intersecting & Skew Lines How do I tell if two lines are parallel? Two lines are parallel if, and only if, their direction vectors are parallel This means the direction ve...
Edexcel IGCSE Chemistry 复习笔记 1.5.5 Calculate Percentage Yield Calculate Percentage Yield Yield is the term used to describe the amount of product you get from a reaction In practice, you never ...
Edexcel IGCSE Chemistry 复习笔记 1.5.4 Calculate Reacting Masses Calculate Reacting Masses Chemical equations can be used to calculate the moles or masses of reactants and products To do thi...
Relative Permittivity & Dielectric Constant Permittivity is the measure of how easy it is to generate an electric field in a certain material The relativity permittivity εr is sometimes ...
Kinematics using Vectors How are vectors related to kinematics? Vectors are often used in questions in the context of forces, acceleration or velocity If an object is moving in one dimension then i...
Edexcel IGCSE Chemistry 复习笔记 1.5.3 Moles, Mass & RFM The Mole The Mole Chemical amounts are measured in moles The symbol for the unit mole is mol One mole of a substance contains the...
Equation of a Line in Vector Form How do I find the vector equation of a line? The formula for finding the vector equation of a line is This is given in the formula booklet This equation can be use...
