Electromagnets and applicationsBasics of ElectromagnetsAn electromagnet is a type of magnet created by passing an electric current through a coil of wire.The magnetic field is produced by the electric current, and it disappears…
Earth’s magnetism, magnetic declination, and dipEarth's MagnetismEarth behaves like a giant magnet with a magnetic field generated by the movement of molten iron and nickel in its outer core.The Earth's magnetic field protects us from solar wind…
Magnets, magnetic field, magnetic lines of forceMagnetsA magnet is an object that generates a magnetic field and can attract ferromagnetic materials like iron, nickel, and cobalt.Natural magnets are naturally occurring substances like magnetite,…