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Magnetic Poles.
The forces between North
and South poles
are similar to the forces between electrostatic charges.
Unlike poles
attract (pull
towards each other),
Like poles repel
(push away from each
other).
This means that two North poles will repel each other,
two South poles will repel each
other,
one North pole and one South pole will
attract each other.
The further apart the poles, the weaker the
forces between them.
You need to know the shape of the magnetic
field
for poles which attract and poles
which repel.
Notice that the lines of magnetic force between the poles are parallel.
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