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 ...

The video explains the concepts of magnetic, electric, and gravitational fields using simple demonstrations. It shows how ...

How a Generator Works When an electric current flows through a wire, it generates a three-dimensional magnetic force field around the wire, similar to that surrounding a bar magnet. Magnets are ...

Many people will remember experiments in school with iron filings and bar magnets to unveil their magnetic field. It's not quite ... shape and direct the flow of gas around the galaxy.

Magnetic fields lines are invisible but they fill the space around a magnet where the magnetic forces work on magnetic materials, and where they can attract or repel other magnets. Although we ...