11. Magnetic field
• Area of magnetic force around a magnet
• The field lines are closer at the poles rather than the center.
The closer the lines thestronger thespot
24. What if I don’t have a natural magnet
but I need one!!!
Can I make a magnet?
Only if we have:
1. Nail (any good electrical conductor material)
2. Coil (any good electrical conductor material)
3. Battery (Electric source)
4. Stapler pins(To test the magnet)
28. Safe handling of Magnets
1) Don’t bang magnets together because they will break and small
pieces will go flying off.
2) Wear safety goggles so that the small pieces will not go into your
eyes.
3) Don’t drop the magnets. Not only will they break, it will affect the
strength of the magnet.
4) Slowly allow the magnets to come together.
5) Wear protective gloves.
6) Health hazards when in contact with food and drinking water.
7) Don’t heat it or place it in high temperatures as it gets weaker.
29. Storage of Magnets
1) Don’t place strong magnets near video tape or audio
tape or parts of the tape will be erased.
2) Don’t place it near credit cards, the magnetic strip on
the back will be erased.
3) Don’t use magnets near mobile phones, interactive
white boards or computers.
4) If placed close to a TV screen or computer monitor, the
screen’s colour will become distorted.
5) Don’t store in moist places, like places where rainwater
or dust can reach.