While technically not an electromagnet, it is possible to ... If you want to see much more about aluminum floating on a magnetic field, check out the 1975 video from [Professor Laithwaite] in ...

Its purpose is to hold the globe up and also keep the mechanism hidden so it appears to float. The other magnet, whether on ...

a permanent magnet, and a hall effect sensor. A microcontroller implements the PID system, varying the current supplied to the electromagnet to keep the speaker floating at just the right height.

A coil with an iron core is called an electromagnet. The iron core increases the coil’s magnetic field strength. A simple electromagnet is made by coiling wire around an iron nail. An iron core ...

The current induced in the ring has an inductive phase shift relative to the induced EMF, and this phase-shifted current feels a Lorentz force from a radial magnetic ... electromagnet. Turn on the ...