Ferrous metals like steel. Electromagnets function the same as any other magnet but are only activated by the introduction of electrical current through an insulated wire that is normally coiled around a core of ferromagnetic material, such as soft iron.
no
Ferrous metal.
It will pick up the nails the same way a bar magnet would do!
Iron, Nickel, Cobalt
increase the current on the electromagnet
An electromagnet is a stronger magnet.
An electromagnet is a magnet that holds electricity so you can pick up magnets.
More than what? - An electromagnet can pick up metal due to its magnetism - assuming it is turned on. If you increase the current, the electromagnet becomes more powerful - but you must be careful not to pass too much current, otherwise the wires might burn through.
Yes. There are huge electromagnets suspended from cranes that could do that.
Because with an electromagnet, you can turn it off and on - you can pick things up with it then drop them again.
Connecting the electricity will activate the electromagnet.
it is powerful and can be turned on and off easily