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 ...

If you need help visualizing magnetic fields, these slow-motion video captures ... for a person used to a bar magnet. We should advise you before you watch the video below the break, if you ...

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 ...

Because Earth's magnetic field is slightly asymmetrical and more complex than that of a regular bar magnet, the magnetic south pole — the point in the Southern Hemisphere where the magnetic ...

Physics is a subject that demands regular and consistent practice. In order to master the concepts and formulas, students ...