Electrical Machines
A single phase, 2 KV alternator has an armature resistance of 0.8 ohms and 4.94 ohms respectively. The voltage regulation of the alternator at 100 a load 0.8 loading power factor is

 7%.
 14%.
  8.9%.
 0%.

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Electrical Machines
In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting

  the damper bars develop synchronous motor torque.
  negative sequence currents are generated.
  the damper bars develop induction motor torque.
  the damper bars develop induction generator torque.

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