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Rather than "permanent" magnets, the large electromagnets used in junkyards only create a magnetic field when electric current flows through them. They are used to lift iron and steel scrap, and to separate it from non-magnetic scrap. The cranes have an electric generator connected to a wire coil in the large round lifting disc. When the power is on, its magnetic field attracts heavy iron and steel to it. When the scrap is positioned where they want it, they cut the power to the electromagnet and the scrap drops.
What else can I help you with?
Which pole of a magnet is attracted to iron?
Any of the two poles will work. It will induce magnetism in the iron.
How do you re energize a small magnet?
When a magnet is weak, you can do three things to try to recharge it. You can rub a stronger magnet across its surface, you can stack them tightly and in the same alignment, or you can place it on something that floats in water, remove it and strike it with a hammer. These methods are not guaranteed to work.
What happens to the bar magnet as it nears the U magnet the bar magnet will?
Move towards the U magnet so that the poles attach.
What is the point of a magnet in a fan?
Not all fans do need a coil and magnet - there are hand fans, punkah walla fans belt driven fans (as in your car) and Stirling engine fans that I can think of that do not need a coil or a magnet. It is only electrically driven fans that require a coil and magnet because they work on the principles of electromagnetism.
A magnet made of a material that keeps its magnetism is called?
Permanet Magnet
What has electromagnets in it?
a school bell, the earths core and a junkyard magnet
What has an electromagnet in it?
a school bell, the earths core and a junkyard magnet
Where is the giant magnet in Dave's junkyard on Super Power Island?
The junkyard is to the far right on the island, and the crane is at the left side, holding the giant magnet. You have to come up from the right side and get past Crusher, who is (first) stomping and (then) throwing barrels at you. (see the related question)
What is Junkyard Dog best known for?
Junkyard Dog was an American professional wrestler and professional football player, best known for his work in Mid-South Wrestling and the World Wrestling Federation as the Junkyard Dog.
How does a scrapheap magnet work?
A junkyard or recycling center may employ a large magnet crane to move metal objects and scrap.It is an electromagnet : with the power turned on, it attracts the ferrous materials to its metal disk. When the crane has reached the desired location (pile, container, or truck), the power is turned off and the magnetic attraction ceases, dropping the materials.
How does a car scrap heap magnet work?
Scrap Heap MagnetUsually the kind of magnet a junkyard uses is an electromagnet. An electromagnet is simply an iron core wrapped around by copper wire. Then current runs through the wire, it becomes a very strong magnet. There are other types, but I think electromagnet is the most common for car scrap heap.
Can a Magnet work in any kind of liquid?
I think if you put a magnet in a liquid i think it is not going to work again. I think if you put a magnet in a liquid i think it is not going to work again.
Where can you buy a horn for a 2005 Chevy Impala?
any horn will work from the junkyard.
Will a magnet work on Platinum?
No
How do magnetic sweepers work?
They work by using a magnet.
Do magnet bracelets work?
There is no scientific proof whatsoever that magnet bracelets work. There will be a few people who swear by them. And there will always be vendors.
What is junkyard in Tagalog?
Tagalog Translation of JUNKYARD: tambakan
