Engine_2014 : Electricity - 2167/2299
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| Which of the methods listed below is used to provide the rotational torque to cause an AC generator to turn? |
| A) Residual magnetism remaining in the field. |
| B) Providing current to the field from an external source. |
| C) Residual magnetism remaining in the armature. |
| D) Starting of the prime mover. |
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