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Home > Ordnance Documents and other related manuals > > Figure 6. Magnetized Nail
Magnetic Effects.
Magnetic Shielding

Electronic Principles
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ELECTRONIC PRINCIPLES - OD1647 - LESSON 1/TASK 1
attracted by a magnet indicates the material must itself be ;a
magnet at the time of attraction.
With the knowledge of magnetic fields and magnetic lines of
force developed up to this point, it is simple to understand the
manner in which a material becomes magnetized when brought near
a magnet. As an iron nail is brought close to a bar magnet
(figure 6) some of the flux lines emanating from the north pole
of the magnet pass through the iron nail in completing their
magnetic path. Since magnetic lines of force travel inside a
magnet from the south pole to the north pole, the nail will be
magnetized in such a polarity that its south pole will be
adjacent to the north pole of the bar magnet. There is now an
attraction between the two magnets.
FIGURE 6. MAGNETIZED NAIL.
If another nail is brought. In contact with the end of the
first nail, it will be magnetized by induction. This process
can be repeated until the strength of the magnetic flux weakens
as the distance from the bar magnet increases. However,
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