Yes, a good boy is better than a good horse nowadays; but they're like North Poles—hard to come by.
As the north poles help each other, the whole bar can attract outside bodies.
By bringing the two north poles, or the two south poles, near each other, a repulsion will be noticed.
All the north poles thus point more or less one way, and the south poles the other.
This is because the two north poles will repel each other, while the south will attract the north.
The currents, if you will notice, at the north poles move toward each other, and at the south poles move away from each other.
If it is not wound as described there will be two north poles or two south poles, instead of one north and one south.
The north poles of the needles should be at the same end of the paper.
If the coils are placed so that the two north poles or the two south poles are together, they will repel each other.
When they are turned round so that their north poles are all lying in one direction, then the iron is said to be magnetised.