If your new graphics card makes a high-pitched whine while playing graphically intensive games, you might be alarmed, but is ...

Increasing the number of turns on the coil of wire The image below illustrates a simple experiment to demonstrate electromagnetic induction. The direction of a motor effect force can be found ...

Levitation is managed by a permanent magnet on the light assembly and an electromagnetic coil hidden on the other side of the top panel for the enclosure. That coil uses 300 meters of 20 AWG wire.

Discovery and understanding of electromagnetic induction are based on a long series of experiments carried out by Henry and Faraday. If North-pole of a bar magnet is pushed towards the coil ...