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MAGNETISE A SCREW DRIVER
Stuff you need
- Screwdriver
- Large dry-cell battery
- Insulated wire
How to do
- Wrap the wire several times around the screwdriver.
- Touch the bare ends of the wire to the battery terminals briefly (expect some sparks).
- Take wire off battery then test the screwdriver for magnetism.
Result
- Screws, nail and other metal material will stick to the screwdriver.
Why
- The screwdriver is magnetized by inserting it into a coil then by charging it with a voltage.
Extra stuff to do
- Try to pick up all types of material, check what is able to be picked up.
- Time how long the screwdriver remains magnetized
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