Physics (II)

I was too bored. So I decided to strip a humbucker pickup. What pickup? The Fernandes stock humbucker.
A humbucker is just two single coil pickups. As simple as that. I had a hard time trying to remove all the pickup cover on it. They put too much glue on it.

A humbucker?

Now two single coils. That black bar is the ceramic magnet of the pickup.

The copper wire is wounded around the two pieces separately. This two piece of 'single coil' is held together on the pickup mounting plate with screws. 

Now there is a common mistake that is made among a lot of people, even the physics teachers. They thought that the metallic parts on the pickups are magnets themselves. True but not always true. For this case, the poles are not permanent magnets. They are temporary magnets: they will gain magnetism when there is a magnet is in contact with it and loses it immediately when it is removed.

The magnet is not attached to the poles. It doesn't attack the screw.

Now, the poles with the magnet. The screw is attracted to the poles. This shows that the poles itself isn't magnetic.

This is at least true for pickups with ceramic magnets. =/ Might be a different story for Alnico pole pieces.