The coil is fed with AC. The magnetic field from the coil induces an opposite field in the copper ring that is out of phase with the exciting field. The two fields combine to produce a force on ...

they will attract. Earth's core contains liquid iron which moves around. Iron is magnetic so the liquid iron causes Earth to have a magnetic field. The needle of a compass is a small magnet that ...

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 capital city is home to the National High Magnetic Field Laboratory, which Bowers said helps establish Tallahassee as the magnetic capital of the world. About 90 conference attendees toured ...

The goal is to leverage the conference's momentum to attract businesses and further ... For many, the biggest draw was seeing the National High Magnetic Field Laboratory up close, said Robert ...