The idea is simple yet intriguing, using a copper coil, capacitors, and a mechanical timing mechanism, a coil gun is built with minimal complexity. Unlike many traditional designs that require large, ...

But when he shows the ends of the core, you’ll see that the side that attracts aluminum has a copper ring embedded in it. The coil is fed with AC. The magnetic field from the coil induces an ...

Did you know that you can request a loaner induction cooktop for a two-week trial period through PG&E? Joyce Mercado explores the switch from gas to induction cooking at home. The post The Wonders of ...

A coil of wire, or solenoid, consists of a wire coiled up into a spiral shape. When an electric current flows, the shape of the magnetic field is very similar to the field of a bar magnet.

That's an electrical current that forms in the copper, in response to the moving magnetic field of the falling neodymium magnet. That eddy current produces a magnetic field of its own. The two ...