-- 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)
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:
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.
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
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
what materials are needed to make a hair straightener?
Some materials are attracted by an electromagnet because have not a clue
A nail, copper wire, paper clips, staples and power supply.
There are many materials that are needed to make catnip treats for cats. Examples of materials that are needed to make catnip treats for cats include soil, water, and sun.
Iron, copper wire and dry cell batteries
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 .
Every thing except a conducting wire, battery and a soft iron core is not needed for making an electromagnet
carbon
The materials needed to make shoes depends on the type of shoe being made. Common materials used to make shoes are leather, nylon, plastic, vinyl, polymer and rubber.
i don't know i asked you guys
The electromagnet can be turned on and off depending on whether it's needed or not.