0
They use a powerful electromagnet. An electromagnet is essentially a coil of wire. When an electric current is passed through the wire, a magnetic force is created inside the coil. So to make a magnet, they rap the raw materials (special combinations of metal) in a wire and pass a current in the wire for a certain time. When the current is shut off, the material inside retains the magnetic properties and becomes what we call a Magnet.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What type of metals does a magnet repel?
Usually magnets attract any iron based metals. Magnets usually only attract or repel other magnets
What three ways are magnets and electromagnets alike?
they are both a type of magnet
What type of energy repels magnets?
To create a permanent magnet energy must be supplied to suitable materiel by immersing it in a magnetic field normally supplied by an electromagnet
What type of magnet can only attract materials when it is touching another magnet?
Metals not magnetic, but permeable will become magnets when near or touching a permanent magnet. You can stroke some metals in the same direction repeatedly on a magnet and make it a magnet.
Is a magnet a insulator or conductor of electricity?
Assuming you mean electrical conductor / insulator, most bar magnets are made of solid metal, either iron, neodymium or an alloy of aluminium nickel and cobalt, so they conduct electricity. There is one type of magnet called a ferrite magnet which does not conduct electricity - they are the type often found in loudspeakers.
What type of metals does a magnet repel?
Usually magnets attract any iron based metals. Magnets usually only attract or repel other magnets
What type of magnet attracts iron fillings?
all magnets
What three ways are magnets and electromagnets alike?
they are both a type of magnet
How many kinds of magnets are they?
only one... but there are difrent shapes...
Can homopolar magnet work with any type of magnet?
Yes that works but first you should design a homopolar magnet because there are no homopolar magnets built, yet !
Which type of nail iron or copper would stick to magnet?
The iron nail would stick to a magnet. Copper is not attracted to magnets.
What type of magnet is a Refrigerator magnet?
The term "refrigerator magnet" is ambiguous and may refer to any number of types of magnets. However, typically a refrigerator magnet is going to be relatively weak and made of the most inexpensive materials available. Hard refrigerator magnets are likely iron. Flexible refrigerator magnets are made of bonded ferrite powders; barium ferrite is among the most common. In general classification, a refrigerator magnet is a permanent magnet.
What type of energy repels magnets?
To create a permanent magnet energy must be supplied to suitable materiel by immersing it in a magnetic field normally supplied by an electromagnet
What type of magnet can only attract materials when it is touching another magnet?
Metals not magnetic, but permeable will become magnets when near or touching a permanent magnet. You can stroke some metals in the same direction repeatedly on a magnet and make it a magnet.
You can flip a coin with two magnets?
Yes. All you have to do is get two magnets and put a quarter or any type of coin in the middle of the magnet on the floor and put on the south and south of north and north and it flips!! It always works if you have it on a corner of the magnet.
What magnets repel to?
Not only magnets, but metal repel. There are two kinds of charges that metal contain, positive and negative. If you push a positively-charged magnet towards another positively-charged magnet, they'll repel, maybe because one type of charge needs the other to attract. If this one type of charge comes close to another charge of the same kind, it won't receive what it needs, and feel "resent" to the other charge, then repel. If you push a negatively-charged magnet towards another negatively-charged magnet, they will also repel.
How a magenet is made?
It depends on the type of magnet, most magnets are "made" they are cut into their shape. Electromagnets are pieces of metal that when a current is run through them develop a magnet charge.
