Magnets How Do They Work

Here is a summary of Lyrics tunes Magnets How Do They Work finest that individuals inform in addition to demonstrate for you. We receive a great deal of tracks Magnets How Do They Work nevertheless we all merely display the particular melodies that people think include the finest songs.

This song Magnets How Do They Work is only regarding test so if you such as music make sure you purchase the authentic mp3 format. Assist the particular performer by means of purchasing the unique compact disk Magnets How Do They Work so the musician can provide the most beneficial music and also proceed operating.

Sorry, we cannot find your songs.


An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil. The magnetic field disappears when the current is turned off. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet. The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field. Electromagnets are widely used as components of other electrical devices, such as motors, generators, electromechanical solenoids, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment. Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel.