The electric current, in turn, creates its own magnetic field—one that ... which increases the field still further. This self-sustaining loop is known as the geomagnetic dynamo.

DC SQUID: A DC SQUID consists of two Josephson junctions connected in parallel in a superconducting loop. When an external magnetic field is applied, it induces a current in the loop, which is ...

If you've ever watched a flock of birds move in perfect unison or seen ripples travel across a pond, you've witnessed nature's remarkable ability to coordinate motion. Recently, a team of scientists ...

When an electric current flows, the shape of the magnetic field is very similar to the field of a bar magnet. The field inside a solenoid is strong and uniform. The small magnetic field caused by ...

No matter how its done, with whatever level of fakery, magnetic levitation just ... with some control electronics to adjust the field strength and close the loop. But, there may be another way ...

Scientists recently discovered that Mn 3 Si 2 Te 6 changes from an insulator to an electrically conductive metal when exposed to a magnetic ... likely signatures of loop currents.

The record sheds light on the climate early humans experienced when they were spreading out of Africa. A tree-ringed African ...

An international team has succeeded at BESSY II for the first time to elucidate how ultrafast spin-polarized current pulses ...

Uses of magnetism - Higher - OCR Gateway Electromagnetism is caused by the magnetic fields around wires carrying an electric current. The induced magnetic field of a wire can interact with other ...

When set spinning, the setup mimics the roiling liquid iron in the Earth’s outer core, which forms electrical currents that generate the magnetic field in a process called a dynamo. His team ...