Why magnets are made in different shapes
Electrical Technology · Grade 10 · about 40 minutes
Shape is chosen to put the field where the job needs it: bar for a clear N-S line, horseshoe for a strong gap, ring for motors and speakers, disc for flat latches.
Sign in to read this lesson
Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.
- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Magnetism
- Magnetic and non-magnetic materials
- Types of magnetic behaviour
- Soft iron and hard steel
- What causes magnetism
- Magnetizing by stroking
- Magnetizing with a current
- Demagnetizing a magnet
- Poles and the pole law
- The magnetic field of a bar magnet
- Field patterns of other magnet shapes
- Why magnets are made in different shapes
- Care and storage of magnets
- Magnets in everyday life