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Magnetism (magnets (magnetic field (diverge from the north pole of a…
Magnetism
magnets
compass
any dipole magnet that is free to rotate
magnetic field
diverge from the north pole of a magnet and converge on its south pole
magnetic field lines never intersect and always form closed loops
symbol is given as B; SI unit is the tesla [T]
magnetic poles
there are always at least 2 poles on a magnet
when a magnet is broken apart, more poles are created
two types: north pole and south pole
like poles repel
opposite poles attract
the earth has both magnetic poles
magnetic domain
groups of atoms with aligned magnetic poles
right hand rules
current through a wire
