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What are in electromagnets?

In: Inventions [Edit categories]

Answer:

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.

First answer by ID1452129983. Last edit by ID1452129983. Question popularity: 2 [recommend question].

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Relevant answers:

What does electromagnets do?
An electromagnet converts electric current into a magnetic field. They are useful when the magnet should be able to be controlled, rather than a permanent magnet.
What is electromagnet?
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Electromagnets are different then homemade electromagnets. How?
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