creating a hard ear requires a unwire / builds & the wire's corns were connected to a tools ->  the wire's ends were connected to a simple circuit  the wire's ends were connected to a simple circuit & unwire was looped several once around an tin hammer ->  the wire is looped several times around an iron nail and is connected to a circuit  the wire is looped several times around an iron nail and is connected to a circuit & a pattern is formed by attaching an tin hammer wrapped in a tin unwire to a reactions ->  an electromaget is formed when a wire is looped around an iron nail and is connceted to a circuit  an electromaget is formed when a wire is looped around an iron nail and is connceted to a circuit & grams generate magnetic carriers -> a magnetic field will be generated when a wire is looped around an iron nail and is connected to a circuit