There are no individual magnetic poles
(or magnetic charges). Electric charges can
be separated, but magnetic poles always come in pairs
- one north and one south.
Opposite poles (N and S) attract and like poles (N and N,
or S and S) repel.
These bar magnets will remain "permanent" until something happens to eliminate the alignment of
atomic magnets in the bar.
11 years ago
11 years ago
11 years ago
11 years ago
11 years ago
12 years ago
12 years ago
13 years ago
13 years ago
13 years ago
14 years ago