This section provides knowledge and understanding of Magnetism and then uses this along with some of your knowledge on electricity to understand and apply the concept of electromagnetism.
Electromagnetic effects are used in a wide variety of devices. Engineers make use of the fact that a magnet moving in a coil can produce electric current and also that when current flows around a magnet it can produce movement. It means that systems that involve control or communications can take full advantage of this.
The different areas of this topic are outlined here;
- Magnets and magnetic fields
- Magnetic materials
- Magnetic fields from current carrying conductors
- Fleming’s left hand rule
- Factors affecting & calculations involving the force on a conductor in a magnetic field
- Applications of the motor effect including headphones and loudspeakers
- Eddy currents
- Alternators, dynamos and microphones
- Transformers and the National Grid
Please remember that you started your GCSEs in year 9 and also learnt material in years 7 and 8 which led into this topic.