-- 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)
Superconductors aside, the materials needed are conductive wire, for winding in bobbins on a ferromagnetic core material. Core stampings from a transformer may serve the purpose.
electric current
Electromagnets require little more than a power source and a conductive substance, producing an electromagnetic field. Insulated copper wire, a battery, and an iron nail can be used to make an electromagnet at home, but industrial electromagnets work on much larger scales.
Wrap insulated wire around an iron core. (the strenght of magnetic field generated is proportional to the amount of current.)
An electric current flowing in a wire creates a magnetic field around the wire . To concentrate the magnetic field, in an electromagnet the wire is wound into a coil with many turns of wire lying side by side. The magnetic field of all the turns of wire passes through the center of the coil, creating a strong magnetic field there. A coil forming the shape of a straight tube (a helix) is called a solenoid. Much stronger magnetic fields can be produced if a "core" of ferromagnetic material, such as soft iron, is placed inside the coil. The ferromagnetic core increases the magnetic field to thousands of times the strength of the field of the coil alone, due to the high magnetic permeability μ of the ferromagnetic material. This is called a ferromagnetic-core or iron-core electromagnet.
A good magnetic material like Iron etc. wire coils and high power electric current.
Insulated wire (to wind into a coil).
A source of current.
All else is optional.
For a very simple one: Wire, a battery, and a long nail to wrap the wire around
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An experiment is designed to test the hypothesis. To create an experiment, you have to first think of the what materials are needed, and then develop a procedure.
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.
There are several items needed to create a vapor barrier in a crawl space. Plastic, caulking, wire brushes, and a putty knife is just a few tools and materials needed.
The materials needed to make a model house depends on what type of house you are making. Some model houses can be bought in kits and just need assembling while others require lots of materials. Materials can include cardboard, adhesive, twigs and even stones.
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
Every thing except a conducting wire, battery and a soft iron core is not needed for making an electromagnet
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 .
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.