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Test
Your EQ #147— Answer
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Answer
3
Take the two bars, and put them together like a T, so
that one bisects the other.
If
they stick together, then bar B is the magnet. If they
don't, bar A is the magnet.
Bar magnets are "dead" in their centers — there is
no magnetic force, since the two poles cancel out. So,
if bar A is the magnet, then bar B won't stick to its
center. However, bar magnets are quite "live" at their
ends — the magnetic force is concentrated. So, if
bar B is the magnet, then bar A will stick nicely to its
end.
Contributor: Naveen PN
Published: October-2002
