This code find maximum or largest element present in an array. It also prints the location or index at which maximum element occurs in array. This can also be done by using pointers (see both codes).
Wires are made of metal (almost always copper or aluminum, for electrical wires) because those are the best conductors. The internal components of switches are also made of metal, for the same reason. The outside parts, that you touch and see, are...
Electromagnets produce magnetic fields only when electricity travels through their wire coils. Iron filings (right) align along the magnetic field lines of a cubical neodymium magnet. Until recently, all magnets were made from metal elements or alloys. These materials produced magnets of different strengths. For example: 1  Ceramic magnets, like the ones used in refrigerator magnets and elementary-school science experiments, contain iron oxide in a ceramic composite.