How are magnets used in junk yards?

Answer 1

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.

They are attached to cranes and are used to lift up heaps of scrap metal

Answer 2

A core of iron is surrounded by many coils of wire. When an electrical charge is sent through the coils, the iron core becomes magnetised and, by hanging the electromagnet on the hook of a crane, scrap iron can be lifted.

Answer 3

Magnets are used in junk yards to quickly and efficiently separate ferrous materials (such as iron and steel) from non-ferrous materials. A large electromagnet can be used to lift and move heavy metal objects, while smaller handheld magnets can help workers identify and sort different types of metal quickly. This allows for more efficient recycling and processing of scrap metal.

Answer 4

Electromagnets in scrap yards are used to move iron or steel objects, such as cars.

Answer 5

They are used to lift iron and steel scrap, and to separate it from non-magnetic scrap to magnetic scrap.

Answer 6

Electromagnets are used because they are stronger than regular magnets and can lift the cars and other scraps.

Answer 7

An electromagnet would be used to separate ferrous metals from other debris and it would also be used to lift loads of ferrous metals.

Answer 8

they are used to pick up all the metal that is magnetitic.

Answer 9

Electromagnets are used to attract iron pieces from scrap. The elements can be reused later.