How to make a bar magnet from wire

Thread starter usljoo
Start date Jan 23, 2011
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Magnet Wire

In summary, to make a bar magnet from wire, you will need a long, thin piece of ferromagnetic material such as iron or steel, and wrap the wire tightly around it, leaving an inch of unwound wire on each end. Then, use a battery or power source to send an electrical current through the wire to magnetize the material. The wire used must be a good conductor of electricity and insulated. The strength of the bar magnet will depend on the strength of the current and the type of material used. Any battery with enough voltage can be used, but a DC power supply or a battery with 9V is recommended for best results. The bar magnet will last as long as the material remains magnetized, but may weaken

Jan 23, 2011

usljoo

a barmagnet seems to be a densly winded solenoid just with the exception that the field of the solenoid is allmost zero outside and also at its ends but strong in the inside witch doesn't agree with barmagnets

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Jan 25, 2011

timthereaper

How doesn't it agree with bar magnets?

1. How can I make a bar magnet from wire?

To make a bar magnet from wire, you will need a long, thin piece of ferromagnetic material such as iron or steel. Begin by wrapping the wire tightly around the material, leaving about an inch of unwound wire on each end. Next, use a battery or power source to send an electrical current through the wire. This will magnetize the material and turn it into a bar magnet.

2. What type of wire should I use to make a bar magnet?

The wire used to make a bar magnet must be a good conductor of electricity, such as copper or silver. It is also important that the wire is insulated, as the electrical current needs to flow through the wire and not escape into the surrounding environment.

3. How strong will the bar magnet be?

The strength of the bar magnet will depend on the strength of the electrical current and the type of ferromagnetic material used. Generally, the stronger the current and the more magnetic the material, the stronger the bar magnet will be.

4. Can I use any type of battery to create the electrical current?

Yes, you can use any battery as long as it has enough voltage to produce a strong enough current. However, it is recommended to use a DC power supply or a battery with a voltage of at least 9V for best results.

5. How long will the bar magnet last?

The bar magnet will last as long as the ferromagnetic material used remains magnetized. However, over time, the strength of the magnet may weaken due to factors such as exposure to heat or other magnetic fields. The wire can be unwound and the process can be repeated to re-magnetize the material if needed.