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magnetic pole |
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1
(Phys.) One end of a permanent magnet from which magnetic lines of flux appear to emanate. Poles are designated north (N), or south (S), according to whether the lines originate from or end at the pole. Like poles (N/N or S/S) repel each other; unlike poles (N/S) attract each other. A magnetic pole is a source of magnetic field strength H, whereas the absence of magnetic monopoles means that the magnetic flux density B must always form closed loops (see diagram at field).
2
(Geophys.) One of the two points on the surface of the Earth towards which all magnetic compasses align themselves. The pole located in northern Canada is in fact a south pole, and thus it attracts the north pole of a magnetic compass. |
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| Other Terms : millimetre (US millimeter) | force constant | race
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