| 1. | Large blue sparks flashing around the motor commutator indicate worn brushes.
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| 2. | In group theory and ring theory, brackets denote the commutator.
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| 3. | In a motor the commutator applies electric current to the windings.
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| 4. | Until the 1960s, automobiles used DC dynamo generators with commutators.
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| 5. | The first practical commutator, were simpler to manufacture and maintain.
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| 6. | They obey the following fundamental commutator and anti-commutator relations,
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| 7. | They obey the following fundamental commutator and anti-commutator relations,
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| 8. | On the rotor is an additional regulating winding with a commutator.
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| 9. | Modern examination of the commutator subspace involves checking its spectral characterisation.
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| 10. | Metal brushes and a flat commutator switch power to the rotor coils.
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