Electromagnetism results when electric currents and magnetic fields interact with each other. , Hans Oersted discovered that electrical current influenced a magnetic compass and discovered the impact of electricity on magnetism. , When a wire is carrying an electrical current, a magnetic field is produced around the wire. , A coil of wire that carries an electrical current is called a solenoid. , A solenoid and a battery can produce an electromagnet. , A simple motor has a coil of wire mounted between the poles of a magnet and then electrified. , An armature is a mounted coil of wire. ,

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