This is called an elecro-magnet, and it is only magnetized while current is running through it.
Sending electricity though a copper wire wrapped round an iron core will create an electro-magnet.
Electromagnetism
When electric current is run through a solenoid coil wrapped around a chunk of iron, the iron becomes magnetized. The magnetic field produced by the electric current aligns the magnetic domains within the iron, creating a temporary magnet.
Magnetic field.
electric circuit is the write answer, by kristy
Electromagnetism occurs when an electric current is sent through a coil of copper wire that is wrapped round an iron core.
Plastic wrapped around the wire is insulator. Not a conductor. That is why it is wrapped around the conductor wire.
When an electric wire is wrapped around a nail and connected to a power source, it creates an electromagnet. The current flowing through the wire generates a magnetic field, causing the nail to become magnetized. This setup is commonly used in electromagnets and various electrical devices.
An electromagnet is created when an Fe core is wrapped in a conductor and an electric current goes through the conductor; magnetism and electrical current have a symbiotic relationship -- when a conductor is moved in a magnetic field, electrons start to move and when electrons move through a conductor, a magnetic field is created around the conductor; a simple motor uses an electromagnet to do work.
jkkl
A coil of wire wrapped around an iron core produces an electromagnet. When electric current flows through the coil, it creates a magnetic field. This electromagnet can be used in various applications, such as lifting objects or generating mechanical motion.
An electromagnet is a type of temporary magnet that is created by passing an electric current through a coil of wire wrapped around a magnetic core, such as iron or steel. The strength of an electromagnet can be adjusted by changing the amount of electric current flowing through the coil.