Q. Dip a bar magnet into a heap of iron fillings and raise the magnet, we can see that the fillings are:

A
Clustered at the middle
B
Clustered over the surface uniformly
C
Clustered at the two ends
D
Clustered only at south pole
Solution:

The ends of a magnet are called its poles. One end is called the north pole, the other is called the south pole.

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