What's more important, a magnet's surface area or thickness?
November 5, 2009 11:27 AM Subscribe
What contributes more to the attractive force between a magnet and a thin piece of metal - the magnet's surface area, or its thickness?
posted by howling fantods to Science & Nature (5 answers total) 1 user marked this as a favorite
Suppose I have thin piece of metal and a neodymium disc magnet. With everything else being equal, will a thin magnet with a large surface area provide a stronger pulling force than a thicker magnet with a smaller diameter? In either case, the piece of metal is no thicker than the magnet itself.