pptx, 1.46 MB
pptx, 1.46 MB

OCR A level Physics: 23.6 Transformers
Module 6 Particles and Medical Physics

This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided.

This lesson covers:
Structure of transformers
Step-up and step-down transformers
The turn-ratio equation
The ideal transformer equation
Why transformers are used in the National Grid

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OCR A level Physics: Magnetic Fields

OCR A level Physics: Chapter 23 Magnetic Fields is apart of the Module 6: Particle and Medical Physics All presentations come with worked examples, solutions and homeworks. 23.1 Magnetic fields 23.2 Understanding magnetic fields 23.3 Charged particles in magnetic fields 23.4 Electromagnetic induction 23.5 Faraday's law and Lenz's law 23.6 Transformers * Attraction and repulsion of magnets * Rules for magnetic field lines * The magnetic field of Earth * Applying the right-hand cork screw rule * How to create uniformed magnetic fields * Solenoids * Fleming’s left hand rule * Determining the direction of force on a current carrying conductor * Calculating the magnitude of force on a current carrying conductor * Angles between the magnetic field and current carrying conductor * An experiment to determine the magnetic flux density of a field. * Apply Fleming’s left-hand rule to charged particles * Deriving an equation for the magnetic force experienced by a single charged particle (F = BQv) * Charged particles describing (moving) in circular paths in magnetic fields. * The velocity selector. * The Hall probe and Hall voltage. * Electromagnetic induction produces an induced e.m.f * Conditions to produce electromagnetic induction * How to increase electromagnetic induction * Magnetic flux density, magnetic flux, and magnetic flux linkage * Units of weber (Wb) * Magnetic flux density and magnetic flux linkage * Faraday’s Law * Lenz’s Law * Alternators and induced e.m.f. * Graphs of flux linkage and induced e.m.f. * Structure of transformers * Step-up and step-down transformers * The turn-ratio equation * The ideal transformer equation * Why transformers are used in the National Grid

£12.00

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