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a magnetic field
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∙ 15y ago
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Does an electromagnet work without a nail?
Yes but you would need a conducting pole of some kind to create the magnetic field.
How is a magnetic force in an electromagnet created?
An electromagnet uses electricity to create the magnetic field. Moving charges create magnetic fields. Knowing that, if we have a lot of copper wire (with a suitable insulator) wrapped around an iron core, we can send direct current through that wire, and it will create a magnetic field. The magnetic field will magnetize the iron core, and the core becomes a magnet. Wrapping wire around a nail and connecting a battery to the ends of the wire will make a simple electromagnet.
When is magnetism lost in an electromagnet?
Magnetism is lost in an electromagnet when the electricity is turned off.
What advantage does an electromagnet have against a bar magnet?
With an electromagnet, the magnetism can be turned on and off according to the whim or need of the operator.
Is earth an electromagnet?
a part of the earths structure causes it to act like an electromagnet
How do you create electromagnetic energy?
a ___________________ is he energy source when creating an electromagnet
What was wrapped an iron bar to create the first electromagnet?
Coils of wire
Can an electromagnet create a magnetic field when the battery is removed?
If the electromagnet has a core, which has become magnetized, then the core will have a residual magnetic field when the power is removed.
What was wrapped around an iron bar to create the first electromagnet?
Coils of wire
Which of these must be used to create an electromagnet?
coils of wire, iron, and electric current
What is the difference in a common bar magnet and an electromagnet?
The comon bar magnet has two poles, and the electromagnet can be turned on and off also the electromagnet uses electricity to create a magnetic field in the first place. so the difference is normal magnet cant be turned on and off but the electromagnet can. does that answer ur question?
What magnet is made by electric currents?
All electric currents create magnetic fields. If you wind wire into a coil and pass current through the wire, that is an electromagnet.
What does an enameled wire that's wrapped around an iron nail connected to an electrical circuit create?
An electromagnet.
Is an electromagnet likely to be attracted to a magnet?
An electromagnet is simply a device that will create a magnetic field when electricity is run through it (basically a normal magnet, but you need to plug it in). Depending on the magnetic charges of the electromagnet and the regular magnet, it should either attract or repulse like magnets normally do to one another.
What is a device that has an iron center wrapped in coil of wires?
This is a basic description of an electromagnet. Apply a voltage (direct current) to the coil, and a magnetic field will develop around the coil and be "conducted" through the iron core to create that electromagnet.
Does an electromagnet work without a nail?
Yes but you would need a conducting pole of some kind to create the magnetic field.
How is a magnetic force in an electromagnet created?
An electromagnet uses electricity to create the magnetic field. Moving charges create magnetic fields. Knowing that, if we have a lot of copper wire (with a suitable insulator) wrapped around an iron core, we can send direct current through that wire, and it will create a magnetic field. The magnetic field will magnetize the iron core, and the core becomes a magnet. Wrapping wire around a nail and connecting a battery to the ends of the wire will make a simple electromagnet.
