Loudspeaker - One application of the motor effect, Uniform - The magnetic field between a north and south pole, Direction of force - Represented by the thumb in the left hand rule, Right hand rule - Used the determine the direction of a magnetic field around a current carrying wire , Attractive - Induced magnetism is always, Iron - A magnetically soft material, Parallel - No force is experienced if the wire and magnetic field run, Perdendicular - Maximum force experienced when the wire and field are , Strong magnetic field - Produced when the field around the wire and between the poles of the magnet line up, Weak magnetic field - Produced when the magnetic field around a wire and between the poles of a magnet are in opposite directions , Split ring commutator - Changes the direction of the current through the coil evert half turn,

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