Engine_2014 : Electricity - 1611/2299
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| What is the purpose of the commutator and brushes on a DC generator? |
| A) transfer generated direct current voltage from the armature to the line |
| B) convert the alternating current voltage generated within the armature to a direct current voltage |
| C) provide a sliding contact method to excite the field |
| D) reduce sparking between the armature and the carbon brushes |
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