Video encyclopedia

Magnetic field


Magnetic Force and Magnetic Field | Don't Memorise


Teacher Workshop: Make a Magnetic Field


What is the magnetic field?


Magnetic Fields in Slow Motion | Magnetic Games


Magnetic Force Does NOT Exist!

A magnetic field is a vector field that describes the magnetic influence of electrical currents and magnetized materials. In everyday life, the effects of magnetic fields are most readily encountered with nearby permanent magnets, which pull on magnetic materials and attract or repel other magnets. Magnetic fields surround and are created by magnetized material and by moving electric charges such as those used in electromagnets. Magnetic fields exert forces on nearby moving electrical charges and torques on nearby magnets. In addition, a magnetic field that varies with location exerts a force on magnetic materials. Both the strength and direction of a magnetic field varies with location. As such, it is an example of a vector field.
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