What materials are needed to make an electromagnet?

Answer 1

-- a DC power supply; (e.g., battery)

-- a long conductor that can be arranged to take the current

several turns around a central axis; (e.g., wire)

-- a highly permeable core for the winding; (e.g., cylindrical clump of iron)

Answer 2

every time electricity passes through a wire, it gives off an electric current. this is the basis of an electromagnet. if you add coils to the wire, there will be more current in a smaller space this will make it stronger. you can also make it stronger by:

• putting more current through the wire
• putting a iron core through the wire

electromagnets are found in bells, scrap heap cranes, circuit breakers and much more. the advantage of electromagnets is that they can be turned on and off.

Answer 3

you get a magnetic maerial (mainly iron nail) and wrap copper wire around it and attach a baterie to the copper wire and there you have it, an electromagnet