what is the use of split rings and brushes in an electric motor?
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A brush is a device which conducts current between stationary wires and moving parts, most commonly in a rotating shaft. Typical applications include electric motors, alternators and electric generators.
Split rings:-
The purpose of the split ring in to prevent the battery or power supply fromshorting out. and to reverse the current in the rotor coil when its magnetic moment is parallel to the magnetic field.
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The brushes should maintain a close contact with rotating part (commutator or slip rings) in order to ensure sparkles operation without wearing itself too quickly.
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