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 ...

First let us understand what magnets are. Electromagnets work by passing electricity through a wire wrapped around an iron core. The electric current creates a magnetic field, and when the current ...

Magnets are also surrounded by a similar three-dimensional field. This can be "seen" in two ... magnetic force surrounding the magnet. The simplest generator consists of just a coil of wire and a ...