AQA A Level Physics复习笔记7.9.4 Faraday's & Lenz's Laws
Faraday's & Lenz's Laws Faraday's Law links the rate of change of flux linkage with e.m.f It is defined as: The magnitude of the induced e.m.f is directly proportional to the rate of cha...
AQA A Level Physics复习笔记7.9.3 Principles of Electromagnetic Induction
Principles of Electromagnetic Induction Electromagnetic induction is a phenomenon which occurs when an e.m.f is induced when a conductor moves through a magnetic field When the conductor cut...
AQA A Level Physics复习笔记7.9.2 Magnetic Flux Linkage
Magnetic Flux Linkage More coils in a wire mean a larger e.m.f is induced The magnetic flux linkage is a quantity commonly used for solenoids which are made of N turns of wire The flux linka...
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...
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...
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...
