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

It explains how electrons are accelerated by an electron gun and then deflected by a magnetic field created by Helmholtz coils ... the magnetic field, the electric potential, and the radius ...

If the conductor is part of an electric circuit, an induced current ... For example, if a magnet is moved into a coil of wire, the induced magnetic field tends to repel the magnet back out of ...

A generator is simply a device that converts mechanical energy (itself derived from coal, oil, natural gas, wind, water, nuclear reactions or other sources) into electrical energy. Here ...

Stimulation is mediated by electromagnetic induction of weak electric current in neurons using an electromagnetic coil over the head. Repetitive transcranial magnetic stimulation is used to treat ...