Magnets can pick up a chain of magnets due to the magnetic force carrying through the chain because of the attraction to metal nails.
Magnets have the ability to attract certain materials like iron and nickel. When a magnet is lowered into a bucket of nails, it can pick up a chain of magnets because the magnetic force carries through the chain due to the attraction to the metal nails. Each nail in the chain is not temporarily magnetized, but rather attracted to the magnet's field.
https://brainly.com/question/3160109