RUSSELL KIGHTLEY / SCIENCE PHOTO LIBRARY RUSSELL KIGHTLEY / SCIENCE PHOTO LIBRARY
This image may not be used in educational posters.
Magnetic field. Computer artwork showing the magnetic field lines around a bar magnet. A magnetic field always runs from the north pole to the south pole. The magnetic forces are produced by the motion of charged particles within the magnet. These forces influence other magnetic materials in the field without physically contacting them.
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