2006-10-04 04:21:54 · 10 answers · asked by fred d 1 in Science & Mathematics ➔ Physics
you can make an electro magnet take an old nail, wrap a wire around it. The more wraps, the better the magnetic pull. Take each end and put it to the + and - of a 9 volt battery.
2006-10-04 04:26:03 · answer #1 · answered by 1loopyferretpsycho 3 · 2⤊ 0⤋
Try this: Get a large steel spike at the hardware store ( about 3/8 to 1/2 " thick and 6 or so long ) and a couple of feet of copper wire...small gauge. Wrap the spike with the wire round and round. Then attach one end of the wire to the positive terminal of a battery, ( a regular D cell should do it ) the other end to the negative, and viola! you have created a magnet field, also known as an electro-magnet. The point of the spike will now be a magnet. Break the field by removing one of the copper leads and the current stops flowing and the field disappears. Placing a simple on/of switch on one of the leads will allow you to stop and start the magnet easily. This is the type of magnet used in salvage yards to pick up materials. You are building a miniature version.
2006-10-04 04:32:47 · answer #2 · answered by The Oldest Man In The World 6 · 1⤊ 0⤋
Put an unmagnetised nail in the north - south direction.
Keep hitting it lightly with a hammer or similar.
The atoms in the nail will gradually realign to the earths magnetic field. It will be a very weak magnet though.
OR
Use the method suggested by others, using copper wire.
Make sure it is not bare copper wire though.
Enamel covered is best.
2006-10-04 09:47:14 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Take a piece of hard steel, a screwdriver or a small file and stroke a permanent magnet along it several times and the steel will become quite a reasonable magnet, you can demagnetise it by hammering it or by stroking the magnet along it ,using the other pole of the magnet, until the magnetism is gone
2006-10-04 10:21:39 · answer #4 · answered by bo nidle 4 · 0⤊ 0⤋
they are many ways:
1. take a iron rod & a magnet. from the middle of the iron bar drag only one of the poles towards to the end of the iron bar.
repeat this 20-30times.
2. wrap copper wire around a iron bar and connect it to a 12v battery, remove after 5mins
2006-10-04 04:36:29 · answer #5 · answered by Charu Chandra Goel 5 · 1⤊ 0⤋
u can rub something made of iron/steel against a magnet
2006-10-04 07:54:43 · answer #6 · answered by helenagilchrist@btinternet.com 1 · 1⤊ 0⤋
you can not make a magnet. A magnet is a rock.
2006-10-04 04:24:16 · answer #7 · answered by stormcheer1 1 · 0⤊ 2⤋
Hi>
I feel that you already know the answers. Yet, and just for fun ...
Rub a pin up and down a bit of amber.
Of for a really "go-away" one, stick something nice and ferrous in a magnetron unit.
It will stop and knacker a watch.
Bob
2006-10-04 04:36:20 · answer #8 · answered by Bob the Boat 6 · 1⤊ 0⤋
you can make a electromagnet by taking a piece of iron and wrapping insulated copper wire over it and take a 9v battery which will be available in shops and connect it will notice that small pins will get attracted towards it
2006-10-04 04:30:01 · answer #9 · answered by HEMNATH 2 · 2⤊ 0⤋
Make a Magnet
http://www.tooter4kids.com/Magnets/make_a_magnet.htm
http://www.scienceproject.com/projects/intro/primary/PX002.asp
http://school.discovery.com/curriculumcenter/magnetism/pdf/activity2.pdf#search='make%20a%20magnet'
lots more here
http://uk.search.yahoo.com/search?p=make+a+magnet&prssweb=Search&ei=UTF-8&fr=FP-tab-web-t340&x=wrt&meta=vc%3D
2006-10-04 04:27:52 · answer #10 · answered by Karen J 5 · 1⤊ 0⤋