Experiments suggest an unusual magnetic material could help harness energy from Earth’s rotation. But not everyone is ...

When an electric current flows, the shape of the magnetic ... magnetic field. Figure caption, A solenoid, shown here in cross section, has a stronger electromagnetic field than a single straight ...

Electromagnetic induction - Higher - AQA Electromagnetic induction can create a voltage by movement of a conductor in a magnetic field. This voltage can make current flow, and the effect is used ...