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Topic: Electromagnet (Read 1 time) previous topic - next topic

A4kash

I was doing some project on magnetic levitation and was to require an electromagnet.So i was thinking og making an electromagnet which was strong enough to levitate a pliers.So how can we make such a strong electromagnet out of 9v battery?Can we use AC power supply for this purpose and and how long should be the length of the electromagnet and wire to be used?

Grumpy_Mike

You can not make such a strong magnet from a 9V battery.
You only stand a chance of levitating a small spherical object pliers is right out.
If you use AC it must be rectified into DC to keep the fielding the same direction.

A4kash


You can not make such a strong magnet from a 9V battery.
You only stand a chance of levitating a small spherical object pliers is right out.
If you use AC it must be rectified into DC to keep the fielding the same direction.

http://uzzors2k.4hv.org/index.php?page=magneticlevitation
This site has the actual project.Ok here he is using 12v and he is able to leviatate the pliers.
Among other questions what should be the length of the wire?How should we coil the wire?

fungus


http://uzzors2k.4hv.org/index.php?page=magneticlevitation
This site has the actual project.Ok here he is using 12v and he is able to leviatate the pliers.


He has a lot of amps. Amps is what counts for electromagnets, not volts. A 9V battery can only supply milliamps.

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

Shpaget

I would scrap the idea of attraction and shift it around. It is much easier to control repulsive levitation.
You put a permanent magnet in a clear plastic tube and an electromagnet at the bottom. Repulsive force is controlled by a simple PWM, no need to monitor the position of pliers and you can simply regulate the height of the levitated magnet.

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