Notes on magnetism and electromagnetism
An understanding of magnetism and electromagnetism is fundamental to the working of many electrical machines, for example motors and generators.
The first notes sheet explains a few of the basic ideas on magnetic fields and magnetic fields shapes.
The second explains how the interaction of fields creates force and movement including Fleming's Left Hand Rule. There is a connecting video free to watch here.
The third sheet explains Lenz's Law and Faradays Law about the production of electricity from a wire or coil moving in a magnetic field. Again there is a connecting video free to watch here.
The fourth sheet explains how electricity is produced with a simple generator.
The final three sheets explain what transformers are, how they work and why they are fundamentally important to electricity production and transmission. Again there is a connecting video free to watch here.