permanent magnet - a magnet that will always attract other magnetic materials, temporary magnet - a magnet that is attracted to another magnet, magnetic field - lines showing where the magnet's attractive influence is felt, North pole to South pole - The direction taken by magnetic field lines, solenoid - A coil of wire carrying a current, iron core - A rod of iron inserted into a solenoid, electric current - A flow of electrons in a particular direction, iron, nickel, cobalt, steel - The main examples of everyday magnetic materials, induced current; induced field - To create a current; create a field, align - To line up against something,

Electromagnets introduction

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