[Tuomas Nylund] wanted a way to visualize the electromagnetic fields (EMF) around him ... He admits that this isn’t much more than just an inductor connected to the probe and should not be ...

You also don’t get big voltage spikes caused by back EMF, which depending on your application could be a plus or a minus. But if you need an ungainly inductor in a circuit for its phase response ...

It shows that it is the relative motion between the magnet and the coil that is responsible for generation (induction) of electric current in the coil. The magnitude of the induced emf in a ...