The Hendo hoverboard probably uses electromagnetic repulsion for lift off. America's physics teacher explains how it might work.

Independent variable is the current in the coil. Dependent variable is the strength of the electromagnet, indicated by the number of paper clips that the electromagnet can hold.

It’s an electromagnet pendulum analog circuit. Whether you’re building it, or just studying the schematics, this is a fun way to brush up on the non-digital side of the craft.

In this activity, students will learn how an electromagnet works by making a simple one. Using this knowledge, students will design a diagram to make a working speaker using household materials. Then ...

Thermal-magnetic circuit breakers contain two different switching mechanisms, a bimetal switch and an electromagnet.

The diagram shows four different positions of the coil in an alternator, and the corresponding potential difference produced.