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An electromagnet is only live (magnetised) when a current is flowing through the coil.
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What is a region where a magnetic force can be detected?
The magnetic field. If it's an electromagnet, the electromagnetic field.
Does an electromagnet use an electric force or a magnetic force?
it uses electric force
What is difference between of Electromagnet and Electric Magnetic Field?
An electromagnet is a magnet that only generates magnetic forces when electricity is running through it, basically a magnet that can be turned on and off. An electromagnetic field is the magnetic force generated when an electromagnet is used.
How can you make an electromagnet's pulling force stronger?
An electromagnet's pulling force can be made stronger by introducing iron core in it.It increases the magnetic pull.
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.
Why do the number of windings around an electromagnet affect the strength of and electromagnet?
This is because an electromagnet gets its magnetic force from the electrons passing through the wire, the more coils there are the more electrons passing through so the more magnetic power. Obviously this only works to an extent since you would need more voltage and so on.
Do an electromagnet keeps its force when the electricity goes off?
Check out how the magnetic field is produced - there's your answer.
Is the magnetic field the area around the magnet where the force acts?
Magnetic domains are microscopic areas of a solid where the atoms all have their magnetic moments aligned. If these domains are randomly aligned then a ferromagnetic material like iron or nickel will not have any permanent magnetism. If these domains start to align with each other the bulk material will show permanent magnetism. The area around a magnet where the force acts is the magnetic field.
How can electricity generated by magnetism?
The simple answer is by induction. Induction is the "sweeping" of a magnetic field across a conductor and the generation of electromotive force (EMF) or voltage in this action. By taking a rotor with many turns of wire on it and rotating it inside a stator, which has a permanent magnetic field (either from permanent magnets or, more likely, an electromagnet), we generate electricity. It's done all the time.
What is the nail in an electromagnet?
The nail in an electromagnet is the core of the electromagnet. It is there to provide the magnetic lines of force a "highway" to get from one end of the coil to the other end through the middle of the coil. The magnetic lines of force "like" the nail because it is a ferromagnetic material. They can travel through it very easily - and they do! The nail also provides the "working end" of the electromagnet. The magnetic field lines emerge from the nail, and then act on what is there. If you are, say, doing a separation experiment removing steel tacks that are mixed in with small brass nails (brads), the tacks will stick to the end of the nail at the "working surface" or the pole of the electromagnet.
The space around a magnet where the force of the magnet acts is a?
electromagnet
Where is the magnetic field concentrated in an electromagnet?
In an electromagnet, the most intense (concentrated) magnetic flux is in the core. The lines of magnetic force then radiate out from each pole in such a way as to form a closed loop between the N and S poles of the magnet. [You might want to consider why these external lines of force separate themselves from each other. - Just follow the laws of magnets.]
