We can manipulate a magnet's shape to increase the area of the poles, thereby increasing the strength of its pull. Because of the wide, flat surface, disc magnets have a large pole area making them strong, effective magnets.
Depending on the size of the disc, this shape has a variety of uses.
Disc magnets are used every day in clothing, fashion accessories, and home decor. Sewing disc magnets into clothing is a great way to hold fabric together. Industrial-sized disc magnets are commonly used to pick up old cars at junkyards. Breaking Bad fans may recognize this magnet from the season 5 premiere when a junkyard disc magnet is used to destroy the hard drive of a laptop from a distance.
