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 ...
If these metals have not been turned into a permanent magnet they will still be attracted to a magnet if placed within a magnetic field. In this situation they act as a magnet - but only whilst in ...
BEIJING -- A new analysis of samples collected by China's Chang'e 5 mission has revealed that the moon possessed a weak yet still running dynamo magnetic field approximately 2 billion years ago.
Scientists have published a spectacular new polarised light image of the strong magnetic fields spiraling from ... and co-lead of the project. “Along with Sgr A* having a strikingly similar ...