Controlling magnetism in a device is not easy; unusually large magnetic fields or lots of electricity are needed, which are ...

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 ...

Incidentally, [Dr.Stone] notes that the current version of the hardware and software can only handle one magnet at a time; visualizing complex magnetic fields and more than two poles would take an ...

Examples: Electromagnets work by passing electricity through a wire wrapped around an iron core. The electric current creates a magnetic field ... Every magnet has two poles: A north pole and ...

As it turns out, the ability to nullify the powerful magnetic field ... formed from two thick plywood discs with magnets set into the edges. These magnets alternate in polarity around the discs ...

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 ...