They are used everyday to move scrap iron around the scrap yard...
add it to your compost heap
Scrap heap magnets are basically electromagnets. Electromagnets are simply wire coils usually would around an iron core. When connected to a DC voltage or current source, the electromagnet becomes energized, creating a magnetic field just like a permanent magnet. The magnetic flux density is proportional to the magnitude of the current flowing in the wire of the electromagnet.
Magnets are used in everyday life for holding items on refrigerators, such as notes and photos.
Scrap yard crainsTrainsShip navigators
These objects use magnets...CompassesSpeakersRefrigeratorsComputersCarsCeiling FansPrintersTelephonesTape RecordersWatches
to answer questions like this using their computer
There are three different ways to increase your magnet:Increase the voltage or current.Add more turns of the coil.Add a magnetic core inside the coils which will focus the magnetic field.
inside fridge door, inside your toaster, and all the motors in the house
One of the most common use for magnets is on cupboard doors to hold them closed you will also find magnets in lots of electrical devices because they are a main component in speakers of all sizes even the tiny ones used in phones. I could go on and on but you only asked for one and I gave you two.
Magnets can be used in everyday life in various ways, such as organizing tools, hanging artwork, securing notes on a fridge, and creating magnetic closures on bags or clothing. They can also be used in technology like speakers, headphones, and hard drives. To effectively use magnets, consider their strength, size, and placement for the desired purpose.
It does in that they use very large magnets for the lifting and dropping of scrap into compacting machines and processing machines. It could - though currently does not - have application as a means of transportation, should maglev trains ever come into being.
Fridge doors stay closed using magnets, purses sometimes stay shut with magnets, you can take out metal from from places you can't reach. and sometimes people use magnets as a sex toy where a doctor surgically insets a magnet into the male penis and also into the womens vagina.