0
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.
Wiki User
∙ 13y ago
contect services
Wiki User
∙ 13y agodoesn't damage the cars if being used for something and is easier to pick up securely because with the normal claw grip it is tricky to get a firm hold so there is a safety issue as the car might drop accidentally with a claw grip.
Wiki User
∙ 13y agobecause they are magnets in the scrap yards and the metal picks it up?
Wiki User
∙ 10y agoBecause they are twice as strong as normal magnets and they can carry heavier objects to move.
Hope this helps
Wiki User
∙ 11y agoTo pick up metal junks
Add your answer:
Earn +20 pts
Does a fan have a magnet?
Not all fans do need a 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 magnet. It is only electrically driven fans that require a magnet because they work on the principles of electromagnetism.
Does a fan have a a magnet in it?
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.
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.
Which pole of a magnet is attracted to iron?
Any of the two poles will work. It will induce magnetism in the iron.
Show bar magnet horse shoe magnet dumb bell magnet etc.?
A dumbbell shaped magnet is called which type of magnet?
What has an electromagnet in it?
a school bell, the earths core and a junkyard magnet
What has electromagnets 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)
Why does Luis work for his father at he junkyard on catch the moon story?
becouse his father need help at the junkyard
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.
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.
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.
How does the magnet work in a fridge magnet?
look it up on the internet you
How did a magnet become a magnet?
Ask a Mormon only they know how they work.
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
