Edexcel IGCSE Physics · Spec 6.1-6.3
Magnets, Fields & Electromagnets
Magnets, magnetic fields, and how electromagnets work.
Physics revision video
Magnets, Fields & Electromagnets
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Spec 6.1-6.3
What you need to know
- Describe magnetic poles and forces
- Sketch the field around a bar magnet
- Explain how an electromagnet works
Active recall
Quick check
Answer each question before opening the answer.
What is the difference between a permanent and an induced magnet?
A permanent magnet always produces its own magnetic field; an induced magnet is only magnetic while it is in a magnetic field.
How can you make an electromagnet stronger?
More turns on the coil, a larger current, or add an iron core.
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