The paper clips, jar lid, and nail are probably magnetic. The metal spoon will be magnetic if it is stainless steel but not magnetic if it is aluminum. The penny, nickel, and aluminum foil ball are ...

Iron is magnetic, so any metal with iron in it will be attracted to a magnet. Steel contains iron, so a steel paperclip will be attracted to a magnet too. Most other metals, for example aluminium ...

But when he shows the ends of the core, you’ll see that the side that attracts aluminum has a copper ring embedded in it. The coil is fed with AC. The magnetic field from the coil induces an ...