A shortage of transformers is causing delays to power projects everywhere, holding trillion-dollar industries hostage—and ...

Researchers have developed an innovative method to study ultrafast magnetism in materials. They have shown the generation and application of magnetic field steps, in which a magnetic field is turned ...

Tiny magnetic "flowers" engineered by physicist Anna Palau are redefining how we manipulate magnetic fields. These ...

A flower-shaped structure only a few micrometres in size made of a nickel-iron alloy can concentrate and locally enhance magnetic fields. The size of the effect can be controlled by varying the ...

This magnetic field changes as the current changes ... The induced voltage causes an alternating current to flow. Transformers can only work with alternating current. Input and output voltages ...

Even before entering the mystical realms of UHF design, radio frequency (RF) circuits come with a whole range of fun design aspects as well. A case in point can be found in transmission line ...

a primary potential difference drives an alternating current through the primary coil the primary coil current produces a magnetic field, which changes as the current changes the iron core ...

How a tokamak works: The electric field induced by a transformer drives a current (big red arrows) through the plasma column. This generates a poloidal magnetic field that bends the plasma current ...