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Understanding Induced Magnetism in IGCSE by khumaira.jamari is a document available to read on EtoBox.
Permanent magnets produce their own magnetic field and do not weaken over time. Induced magnetism is temporary and occurs when magnetic materials are placed in a magnetic field. Magnetic fields are represented by lines of force and are stronger where the lines are closer together. The Earth has a magnetic field from electric currents in its iron core, but its geographical and magnetic poles do not coincide. Electromagnets are temporary magnets produced by electric currents and have advantages over permanent
- Author
- khumaira.jamari
- Language
- EN