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Yes, power is needed: When a current is sent through the coil of wire wrapped round a central core of iron, the iron becomes an electro-magnet.

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Related Questions

Do an electromagnet have an static electricity?

Yes


What happens to an electromagnet when the electricity supplying it is switched off?

When the electricity supplying an electromagnet is switched off, the magnetic field produced by the electromagnet disappears. This means that the electromagnet loses its magnetic properties and no longer attracts or repels magnetic materials.


When can an electromagnet acquire?

electromagnet can be acquired when electricity is passed through the soft iron piece.


What is the synonyms of electromagnet?

Combo of electricity and magnetism


What magnet is created by electricity?

It is called an electromagnet.


What factors determine an electromagnet?

Electricity and magnecity


What is one electromagnet?

magnet that is a conductor if electricity


Does electromagnet produce electricity or use electricity?

It doesn produce electricity. It uses electricity and shows magnetic properties.


What are the advantages and disadvantage's of an electromagnet?

an electromagnet requires electricity and you will have to pay for it. permanent magnets are always on and you can change the strength of it.


How does the flow of electricity impact the strength and functionality of an electromagnet?

The flow of electricity affects the strength and functionality of an electromagnet by determining the magnetic field produced. More electricity flow increases the strength of the magnetic field, making the electromagnet stronger and more effective in attracting or repelling objects.


Does an electromagnet keep is force when the electricity goes off?

no because you need electricity to turn it on


When you turn electricity on in an electromagnet?

When you turn on electricity in an electromagnet, it creates a magnetic field around the coil of wire. This magnetic field allows the electromagnet to attract or repel other magnetic objects depending on the polarity of the current flowing through the coil.