Examlex
The bacterial viruses that are released by a process termed extrusion are called
Like Poles
Magnetic poles of the same kind (either both north or both south), which repel each other according to magnetic principles.
Electromagnet
A type of magnet where the magnetic field is produced by an electric current, typically through a wire wound into a coil around a magnetic core.
Magnetic Field
An invisible field around magnetic materials where magnetic forces are exerted and can be detected by other magnetic materials or moving electric charges.
North Magnetic Pole
The point on the Earth's surface where geomagnetic field lines are directed vertically downwards, the opposite of the Geographical North Pole.
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