Physics - permanent and induced magnets
- Created by: cassiarh01
- Created on: 31-01-18 10:07
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- Permanent and Induced Magnets
- Permanent
- They produce their own magnetic field.
- The force between a P and I magnet is always attractive
- Induced
- Magnetic materials that turn into a magnet when put in a magnetic field.
- When you take away the magnetic field, I magnets lose their magnetism quickly & stop producing a magnetic field.
- Induced
- Induced
- Magnetic materials that turn into a magnet when put in a magnetic field.
- When you take away the magnetic field, I magnets lose their magnetism quickly & stop producing a magnetic field.
- Magnets produce magnetic field
- Magnetic field drawings - lines always go fro, north to south. The closer together the lines are, the stronger the magnetic field.
- Magnetic field is strongest at the poles.
- Same poles will repel and opposite poles will attract.
- Compasses
- Inside is a tiny bar magnet. The north of this is attracted to the south of any other magnet - so the compass points in the direction of the magnetic field its in.
- When they're not near a magnet, they always point north because the Earth generates its own magnetic field.
- Permanent
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