| Alternators supply all of the output current through the commutators and brush assemblies. |
| Induced windings of the alternators are rotating (rotor), and the dynamos have a rotary inductor coil. |
| The alternators generate much less power than DC generators. |
| Induced (output) windings of the alternators are fixed (stator), and the dynamos have a fixed inductor (field) coil. |
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