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.

This coil, when activated, generates a precise magnetic field that stimulates specific brain regions. “The magnetic field generated by the coil is approximately 500 milliTesla (mT), about 10 ...

It uses a number of coils to produce a magnetic field to levitate the 3D printed plastic snail which contains the lighting element itself. The actively controlled levitation base uses a magnetic ...

Faraday also observed that it was more efficient if the coil was wound around a metal core, as this helped to concentrate the magnetic field.

As you may recall from Physics 101, a changing magnetic field (like when you slide a bar magnet through a copper coil) induces an electric current. At planetary scale, Earth’s magnetic field induces ...

Scientists have developed a single-cell green microalgae coated with magnetic material. This miniature robot was put to the test: would the microalgae with its magnetic coating be able to swim through ...

When you plug it in, the electric current passing through this coil generates a magnetic field. Meanwhile, phones that support wireless charging include a coil under their back plastic or glass ...

The RF coil is a series resonant circuit, wherein the inductor is a distributed component capable of generating and detecting near-field oscillating magnetic fields. During transmission, the RF coil ...