an iron nail, a long peice of wire, a large battery or a transformer
sand
you and others
There are many uses of the electromagnet, it is used to invent generators and electric motors, used it to control the switch relay, use in practical industries, and even in an electric bell etc. Because the electromagnet is a type of magnet in which the magnetic field is produced by the electric current.
Mybe the materials on which they use to make a backpack
Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.
u need 2 provide more information"Which of these materials would be best to use for the core in order to make the strongest electromagnet to?"u need to provide what "these materials" are
Some materials are attracted by an electromagnet because have not a clue
A nail, copper wire, paper clips, staples and power supply.
The role of an electromagnet is to provide us withrecycled materials. The electromagnet is what picks up our heavy metal bits and bobs and moves it or drops it from a certain height so that the metal breaks and can be used again to make another car .
i don't know i asked you guys
He wound wire around it to make a tranformer.
how to make road rail signal using electromagnet
electromagnetically
yes. but it also wastes energy as sound
you dont make it out of materials you use wood&glass.
They use CO2 and H2O as raw materials.
yes it does