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 ...

Iron is magnetically soft – it can be easily magnetised and demagnetised. Magnetic fields lines are invisible but they fill the space around a magnet where the magnetic forces work on magnetic ...

If you need help visualizing magnetic fields, these slow-motion video captures should educate or captivate you. Flux lines are difficult ... for a person used to a bar magnet.