is there some thing out there that ucan put on a m,agnet or part of a magnet that will make it stop sticking to metal.if so then what
2006-09-25 16:00:45 · 5 answers · asked by gramkamy 1 in Science & Mathematics ➔ Other - Science
You can use a "keeper" which is a piece of soft iron. Connect it between the magnets 2 poles and the magnet will not stick very well to anything.
2006-09-25 16:08:39 · answer #1 · answered by rscanner 6 · 0⤊ 0⤋
Permanent magnets can be demagnetized in the following ways:
* Heating a magnet past its Curie point will destroy the long range ordering.
* Contact through stroking one magnet with another in random fashion will demagnetize the magnet being stroked, in some cases; some materials have a very high coercive field and cannot be demagnetized with other permanent magnets.
* Hammering or jarring will destroy the long range ordering within the magnet.
* A magnet being placed in a solenoid which has an alternating current being passed through it will have its long range ordering disrupted, in much the same way that direct current can cause ordering.
In an electromagnet which uses a soft iron core, ceasing the flow of current will eliminate the magnetic field. However, a slight field may remain in the core material as a result of hysteresis.
2006-09-25 23:10:29 · answer #2 · answered by DanE 7 · 0⤊ 0⤋
If you can connect the north and south poles together with a piece of steel (often called a keeper) it will concentrate the magnetic field within the magnet.
Otherwise, no.
2006-09-25 23:09:14 · answer #3 · answered by LeAnne 7 · 0⤊ 0⤋
Not if its a permanent magnet, you can reduce the amount of magnetisim by beating it with a hammer though.
An electromagnet can be turned on and off.
2006-09-25 23:03:38 · answer #4 · answered by knujefp 4 · 0⤊ 0⤋
Try a thick plastic.
2006-09-25 23:16:00 · answer #5 · answered by ag_iitkgp 7 · 0⤊ 0⤋