They are not positive and negative charges of any sort.

The positive ends point toward the plate with the negative charge.

All the matter in the world is made of tiny positive and negative charges.

Take note that the negative charge of the target doesn't disappear.

The man had such a negative charge he was like an energy hole.

He also found that this did not happen if the sphere had a negative charge.

It just depends on how you consider if current is negative or positive charges.

That is, they have neither a positive nor a negative charge.

This does not mean that individual positive and negative charges cannot be created or destroyed.

What was the source of the positive and negative charges?