AQA A Level Physics复习笔记7.9.1 Magnetic Flux
Magnetic Flux Electromagnetic induction is when an e.m.f is induced in a closed circuit conductor due to it moving through a magnetic field Examples are a flat coil or a solenoid This...
AQA A Level Physics复习笔记7.8.6 Required Practical: Investigating Magnetic Fields in Wires
Required Practical: Investigating Magnetic Fields in Wires Aims of the Experiment The overall aim of this experiment is to calculate the magnetic flux density of a magnet This is done by mea...
IB DP Maths: AA HL复习笔记4.4.2 Mean & Variance
Expected Values E(X) What does E(X) mean and how do I calculate E(X)? E(X) means the expected value or the mean of a random variable X The expected value does not need to be an obtainable value of ...
AQA A Level Physics复习笔记7.8.5 Circular Path of Particles
Motion of a Charged Particle in a Magnetic Field A charged particle in uniform magnetic field which is perpendicular to its direction of motion travels in a circular path This is because the...
AQA A Level Physics复习笔记7.8.4 Force on a Moving Charge
Calculating Magnetic Force on a Moving Charge The magnetic force on an isolating moving charged particle, such as an electron, is given by the equation: F = BQv Where: F = magnetic force on ...
AQA A Level Physics复习笔记7.8.3 Magnetic Flux Density
Magnetic Flux Density Definition The magnetic flux density B is defined as: The force acting per unit current per unit length on a current-carrying conductor placed perpendicular to the magn...
Edexcel IGCSE Chemistry 复习笔记 1.5.8 Empirical & Molecular Formulae
Edexcel IGCSE Chemistry 复习笔记 1.5.8 Empirical & Molecular Formulae Empirical & Molecular Formulae The molecular formula is the formula that shows the number and type of each atom ...
AQA A Level Physics复习笔记7.8.2 Fleming's Left Hand Rule
Fleming's Left Hand Rule The direction of the force on a charge moving in a magnetic field is determined by the direction of the magnetic field and the current Recall that the direction of t...
Edexcel IGCSE Chemistry 复习笔记 1.5.7 Practical: Determine the Formula of a Metal Oxide
Edexcel IGCSE Chemistry 复习笔记 1.5.7 Practical: Determine the Formula of a Metal Oxide Practical: Determine the Formula of Magnesium Oxide Aim: To determine the empirical formula of magnesium oxi...
