This means that their magnetism is there all the time and cannot be turned on or off as it can with an electromagnet. Converting a magnet to a non-magnet is called demagnetisation. Magnets are ...

Earth's main magnetic field is generated in the planet's outer core, a layer of molten iron 2,2001,800-3,100 miles ... complex than that of a regular bar magnet, the magnetic south pole ...

the direction of the magnetic field would not be unique at the point of intersection. 5.2.2 Bar magnet as an equivalent solenoid Cutting a bar magnet in half is like cutting a solenoid.